1981 GMC C2500 Exhaust Manifold and Headers

Please Select your Vehicle to See Exact Fit Parts

Keep Your 1981 GMC C2500 in Top Shape with Quality Exhaust Manifold and Headers

Whether you’re repairing or upgrading your Exhaust Manifold and Header, using high-quality parts is key to keeping your 1981 GMC C2500 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Exhaust Manifold and Header Hardware and Exhaust Manifold and Headers. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Exhaust Manifold and Headers from Trusted Brands

Looking for a reliable Exhaust Manifold and Header? We’ve got you covered with options from brands you know and trust like Dorman and Hooker Headers. For example, Dorman Exhaust Manifold and Headers start at just $201.99 with an average 4.2 star rating. Hooker Headers offer similar pricing and quality, backed by strong customer feedback. With over 21 reviews and a solid 4 star average, you can shop with confidence knowing other GMC C2500 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1981 GMC C2500 Exhaust Manifold and Header at Advance Auto Parts is around $442.78, with a range that starts at $24.99 and goes up to $1,072.99. With 36 options in stock from 9 trusted brands, finding the right fit is easy. Popular picks like Direct Fit Exhaust Manifold: without Heat Shield, Direct Fit Exhaust Manifold: without Heat Shield, and For Use With Chevy Small Block, 3/8 – 16" Thread Size, .75" L, Natural, Set Of 12 start at just $33.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Exhaust Manifold and Header, don’t forget to check out other key components like Catalytic Converters and Exhaust Mufflers. At Advance Auto Parts, we’re here to help you keep your 1981 GMC C2500 in peak condition, inside and out.

Essential 1981 GMC C2500 Exhaust Manifold and Headers

Dorman – Help – Manifold Stud and Spring Kit – M10-1.5 x 77mm (Part No.03107)

Manifold Stud and Spring Kit - M10-1.5 x 77mm

from

$11.99
Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or damaged exhaust bolts and springs.

Product Features:
  • Ideal replacement – the manifold bolt and spring match the fit and function of the original equipment hardware, including bolt diameter, thread pitch and head type
  • Complete installation – this kit includes hardware required for securely attaching the manifold to the exhaust system
  • Trustworthy construction – the kit’s bolt and spring are made of hardened steel for durable, long-lasting service life
  • Quality tested – kit components have undergone extensive testing to ensure proper function and long service life
See More

ARP Auto Racing – For Use With Chevy Ls V8 Engine, M8 Thread Size, Hex Head, Black Oxide, Set Of 12 (Part No.134-1102)

For Use With Chevy Ls V8 Engine, M8 Thread Size, Hex Head, Black Oxide, Set Of 12

from

$50.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • Set of 12
  • 3/8” Wide Header Flange
  • 1.181? Underhead Length
See More

Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413)

Exhaust Manifold Hardware Kit

from

$17.99
Our Exhaust Manifold Hardware Kit comes with the necessary installation components to assist you in replacing your manifold. Save time and energy by having the right hardware on hand when you need it.

Product Features:
  • Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
  • Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12 (Part No.400-1111)

For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12

from

$51.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
See More

ARP Auto Racing – For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Natural, Ss, Set Of 16 (Part No.400-1102)

For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Natural, Ss, Set Of 16

from

$44.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
See More

ARP Auto Racing – 0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1101)

0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12

from

$31.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • Set of 12
  • 0.75″ Overall Length
See More

Mr. Gasket – Exhaust Header Bolt (Part No.2231G)

Exhaust Header Bolt

from

$58.99
Headlock Bolts eliminate the need for lock washers, Period. That’s because each Headlock Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:
  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth
See More

Taylor Gaskets – Vibe-Lock Bolt (Part No.310016)

Vibe-Lock Bolt

from

$89.99
Vibe-Lock Bolt

Dorman – Double Ended Stud Kit – (3) Springs (3) Studs (3) Lock Nuts (Sold by Kit) (Part No.675-216)

Double Ended Stud Kit - (3) Springs (3) Studs (3) Lock Nuts (Sold by Kit)

from

$12.99
This exhaust manifold bolt and spring kit provides a time-saving solution. Designed for direct replacement of rusted or damaged exhaust bolts and springs, it prevents exhaust leaks while allowing movement between the exhaust pipe and muffler.

Product Features:
  • Ideal replacement – the manifold bolt and spring match the fit and function of the original equipment hardware, including bolt diameter, thread pitch and head type
  • Complete installation – this kit includes hardware required for securely attaching the manifold to the exhaust system
  • Trustworthy construction – the kit’s bolt and spring are made of hardened steel for durable, long-lasting service life
  • Quality tested – kit components have undergone extensive testing to ensure proper function and long service life
See More

ARP Auto Racing – For Use With Chevy Small Block, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1201)

For Use With Chevy Small Block, Black Oxide, Black, Chrome Moly, Set Of 12

from

$24.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • Set of 12
  • 0.75″ Overall Length
See More

Dorman – Help – Manifold Bolt and Spring Kit – 3/8-16 x 3.5 In. (Part No.03110)

Manifold Bolt and Spring Kit - 3/8-16 x 3.5 In.

from

$9.99
Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or damaged exhaust bolts and springs.

Product Features:
  • Ideal replacement – the manifold bolt and spring match the fit and function of the original equipment hardware, including bolt diameter, thread pitch and head type
  • Complete installation – this kit includes hardware required for securely attaching the manifold to the exhaust system
  • Trustworthy construction – the kit’s bolt and spring are made of hardened steel for durable, long-lasting service life
  • Quality tested – kit components have undergone extensive testing to ensure proper function and long service life
See More

Dorman – Help – Exhaust Manifold Hardware Kit – 3/8-16 x 3.5" and 4.5" Studs (Part No.03111)

Exhaust Manifold Hardware Kit - 3/8-16 x 3.5" and 4.5" Studs

from

$11.49
Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or damaged exhaust bolts and springs.

Product Features:
  • Ideal replacement – the manifold bolt and spring match the fit and function of the original equipment hardware, including bolt diameter, thread pitch and head type
  • Complete installation – this kit includes hardware required for securely attaching the manifold to the exhaust system
  • Trustworthy construction – the kit’s bolt and spring are made of hardened steel for durable, long-lasting service life
  • Quality tested – kit components have undergone extensive testing to ensure proper function and long service life
See More

Taylor Gaskets – Vibe Lock Header Bolt Kit (Part No.310004)

Vibe Lock Header Bolt Kit

from

$89.99
Vibe Lock Header Bolt Kit

Felpro – Exhaust Manifold Hardware Kit (Part No.ES 75119)

Exhaust Manifold Hardware Kit

from

$33.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.

Product Features:
  • Designed and manufactured to meet the needs of the exhaust system repair environment.
  • Verified, tested and certified proprietary Organic coating resists corrosion.
  • Tightly controlled coefficient of friction ensures reliable installation.
  • Application specific kit contents
  • Self-locking nuts (where applicable).
See More

Dorman – Direct Fit Exhaust Manifold: with Heat Shield (Part No.674-245)

Direct Fit Exhaust Manifold: with Heat Shield

from

$201.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Hooker Headers – Super Competition Long Tube Headers – Painted (Part No.2841HKR)

Super Competition Long Tube Headers - Painted

from

$1025.99
Hooker has long been known for its dominance of the drag racing circuit, but did you know that Hooker can help the off-road enthusiast scorch the deserts, mountains and swamps of the world Hooker Headers use long tube lengths and long transition collectors to produce monstrous low-mid range torque without sacrificing top end horsepower. Each Hooker header is designed to provide the finest fit and most durable construction available on the market today. Hooker offers a complete line of full length and emission compatible headers for the off-road enthusiast to choose from. Whether it be a rock crawling Jeep or a 1000 mile desert racer, Hooker can bring your performance expectations to a new level.

Product Features:
  • Tuned-length primary tubes for maximum exhaust scavenging and velocity
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 18 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16″ machined flanges for a perfect seal
  • Industry’s best welds for durability
  • Designed for optimal performance
  • All necessary hardware included for a complete installation
See More

Flowtech – Afterburner Headers (Part No.49150FLT)

Afterburner Headers

from

$419.99
FLOWTECH’s Afterburner Turbo Chamber Headers represent the first new major design change in exhaust technology in decades. This designs combines the race-proven 4 into 1 design with the torque managing capabilities of a Tri-Y header. The turbo chamber helps smooth out exhaust turbulence for increased performance and a broad power curve.

Product Features:
  • Horsepower and Torque increased over conventional header design
  • Big 3″ secondary collector for reduced back pressure
  • Tuned-length primary tubes combine with Velocity Tube to smooth out exhaust pulses
  • Patented Velocity Tube increases cylinder scavenging
  • All hardware and premium gaskets included for a complete installation
  • Increase Scavenging
  • Smooth Exhaust Pulses
See More

Hooker BlackHeart – Lt Swap Exhaust Manifolds, Stainless Steel, Natural Cast (Part No.BHS3116)

Lt Swap Exhaust Manifolds, Stainless Steel, Natural Cast

from

$665.99
Hooker Blackheart now offers stainless steel versions of our popular cast iron lineup of LT swap exhaust manifolds based on the BHS516 and family. The new stainless steel manifolds offer a number of advantages over the cast iron version, including increased durability, reduced weight, and improved corrosion resistance. The shorty tight tuck design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. These are available in both natural cast and polished depending on the look you’re going for and all hardware is included (gaskets, bolts, and flanges).

Product Features:
  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Plain as-cast finish for a factory appearance. Also available in polished.
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
See More

Dorman – Direct Fit Exhaust Manifold: with Heat Shield (Part No.674-161)

Direct Fit Exhaust Manifold: with Heat Shield

from

$143.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-202)

Direct Fit Exhaust Manifold: without Heat Shield

from

$202.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-390)

Direct Fit Exhaust Manifold: without Heat Shield

from

$266.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

JBA Performance – 1822Sjs 1 3/4" Header Shorty Stainless Steel 96-00 Gm Truck 7.4L Silver Ceramic (Part No.1822SJS)

1822Sjs 1 3/4" Header Shorty Stainless Steel 96-00 Gm Truck 7.4L Silver Ceramic

from

$1010.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1822SJS 1 3/4″ Header Shorty Stainless Steel 96-00 GM Truck 7.4L Silver Ceramic
  • Mandrel bent stainless steel tube
See More

JBA Performance – 1830S-6Js 1 5/8" Header Shorty Stainless Steel Gm Truck 5.0/5.7L With Carburetor Silver Ceramic (Part No.1830S-6JS)

1830S-6Js 1 5/8" Header Shorty Stainless Steel Gm Truck 5.0/5.7L With Carburetor Silver Ceramic

from

$1072.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1830S-6JS 1 5/8″ Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic
  • Mandrel bent stainless steel tube
See More

JBA Performance – 1840Sjs 1 1/2" Header Shorty Stainless Steel 88-95 Gm Full Size Truck 4.3L Silver Ceramic (Part No.1840SJS)

1840Sjs 1 1/2" Header Shorty Stainless Steel 88-95 Gm Full Size Truck 4.3L Silver Ceramic

from

$571.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1840SJS 1 1/2″ Header Shorty Stainless Steel 88-95 GM Full Size Truck 4.3L Silver Ceramic
  • Mandrel bent stainless steel tube
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-197)

Direct Fit Exhaust Manifold: without Heat Shield

from

$166.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Patriot Exhaust – H8048 1 5/8" Header Chevrolet Truck Small Block Chevrolet 73-87 Raw (Part No.H8048)

H8048 1 5/8" Header Chevrolet Truck Small Block Chevrolet 73-87 Raw

from

$372.99
Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r

Product Features:
  • Patriot Exhaust H8048 1 5/8″ Header Chevrolet Truck Small Block Chevrolet 73-87 Raw
  • Patriot offers headers for many applications at prices you can afford.
See More

JBA Performance – 1830Sjs 1 1/2" Header Shorty Stainless Steel 88-95 Gm Truck 5.0L And 5.7L Silver Ceramic (Part No.1830SJS)

1830Sjs 1 1/2" Header Shorty Stainless Steel 88-95 Gm Truck 5.0L And 5.7L Silver Ceramic

from

$784.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1830SJS 1 1/2″ Header Shorty Stainless Steel 88-95 GM Truck 5.0L and 5.7L Silver Ceramic
  • Mandrel bent stainless steel tube
See More

JBA Performance – 1823Sjs 1 3/4" Header Shorty Stainless Steel 96-00 Gm Truck 7.4L Silver Ceramic (Part No.1823SJS)

1823Sjs 1 3/4" Header Shorty Stainless Steel 96-00 Gm Truck 7.4L Silver Ceramic

from

$877.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1823SJS 1 3/4″ Header Shorty Stainless Steel 96-00 GM Truck 7.4L Silver Ceramic
  • Mandrel bent stainless steel tube
See More

Most Popular Exhaust Manifold and Header Hardware for 1981 GMC C2500s

Enhance your 1981 GMC C2500 with one of the 11 Exhaust Manifold and Header Hardware we have in stock, starting at just $24.99.

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12 (Part No.400-1111)

For Use With Chevy Small Block, 3/8"-16, 1"L, Hex Head, Natural, Ss, Set Of 12

from

$51.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
See More

ARP Auto Racing – For Use With Chevy Small Block, 3/8 – 16" Thread Size, .75" L, Natural, Set Of 12 (Part No.400-1201)

For Use With Chevy Small Block, 3/8 - 16" Thread Size, .75" L, Natural, Set Of 12

from

$33.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
See More

Taylor Gaskets – Vibe-Lock Bolt (Part No.310001)

Vibe-Lock Bolt

from

$102.99
Vibe-Lock Bolt

ARP Auto Racing – For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Black Oxide, Set Of 16 (Part No.100-1102)

For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Black Oxide, Set Of 16

from

$31.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • Set of 16
  • 0.75″ Overall Length
See More

ARP Auto Racing – For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Natural, Ss, Set Of 16 (Part No.400-1102)

For Use With Chevy Big Block, 3/8"-16, 0.75"L, Hex Head, Natural, Ss, Set Of 16

from

$44.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • 3/8″-16 Thread Size
  • 1″ Underhead Length
See More

ARP Auto Racing – 0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1101)

0.750" L, Hex Style Head Type, Black Oxide, Black, Chrome Moly, Set Of 12

from

$31.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 Psi Tensile Strength
  • Set of 12
  • 0.75″ Overall Length
See More

Taylor Gaskets – Vibe-Lock Bolt (Part No.310016)

Vibe-Lock Bolt

from

$89.99
Vibe-Lock Bolt

Taylor Gaskets – Vibe Lock Header Bolt Kit (Part No.310004)

Vibe Lock Header Bolt Kit

from

$89.99
Vibe Lock Header Bolt Kit

Mr. Gasket – Exhaust Header Bolt (Part No.2231G)

Exhaust Header Bolt

from

$58.99
Headlock Bolts eliminate the need for lock washers, Period. That’s because each Headlock Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:
  • 16 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth
See More

ARP Auto Racing – For Use With Chevy Small Block, 3/8"-16, 0.75"L, Hex Head, Natural Ss, Set Of 12 (Part No.400-1101)

For Use With Chevy Small Block, 3/8"-16, 0.75"L, Hex Head, Natural Ss, Set Of 12

from

$33.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • 0.75″ Underhead Length
  • Set of 12
See More

ARP Auto Racing – For Use With Chevy Small Block, Black Oxide, Black, Chrome Moly, Set Of 12 (Part No.100-1201)

For Use With Chevy Small Block, Black Oxide, Black, Chrome Moly, Set Of 12

from

$24.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.

Product Features:
  • Material Is Not Affected By Corrosion Or Extreme Heat
  • The Compact 12 Point Nut Lets You Easily Slip A Socket Close To The Pipe
  • Substantially Stronger Than Grade 8 Hardware
  • Nominally Rated At 170,000 PSI Tensile Strength
  • Set of 12
  • 0.75″ Overall Length
See More

Best-Selling 1981 GMC C2500 Exhaust Manifold and Headers

Upgrade your C2500 with one of our 25 best-selling Exhaust Manifold and Headers, earning an average 3.67 stars rating across 11 reviews.

Dorman – Direct Fit Exhaust Manifold: with Heat Shield (Part No.674-245)

Direct Fit Exhaust Manifold: with Heat Shield

from

$201.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Hooker Headers – Competition Long Tube Headers – Painted (Part No.2452HKR)

Competition Long Tube Headers - Painted

from

$368.99
Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer, Hooker Competition headers offer premium features at a very competitive price. Made of durable 16 gauge mild steel tubing, the Hooker Competition header design utilizes a long transition collector to reduce back pressure and increase exhaust flow. A perfect sealing surface is assured with the 5/16″ machined flanges, with welded O-ring seals. Experience has proven that this flange size is ideal to maintain header integrity and be pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to maximize performance. Hooker Competition headers have a standard finish that features a heat-cured, high-heat-resistant paint. Optionally, the famous Hooker Ceramic Thermal Barrier Coating is available.

Product Features:
  • Tuned-length primary tubes for better performance
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 16 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16″ machined flanges for a perfect seal
  • Industry’s best welds for durability
  • Designed for easy, trouble-free fit
  • All necessary hardware included for a complete installation
  • Works with factory power steering, power brakes and air conditioning
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-159)

Direct Fit Exhaust Manifold: without Heat Shield

from

$155.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-202)

Direct Fit Exhaust Manifold: without Heat Shield

from

$202.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-197)

Direct Fit Exhaust Manifold: without Heat Shield

from

$166.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-244)

Direct Fit Exhaust Manifold: without Heat Shield

from

$173.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
See More

Hooker Headers – Competition Long Tube Headers – Painted (Part No.2454HKR)

Competition Long Tube Headers - Painted

from

$387.99
Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer, Hooker Competition headers offer premium features at a very competitive price. Made of durable 16 gauge mild steel tubing, the Hooker Competition header design utilizes a long transition collector to reduce back pressure and increase exhaust flow. A perfect sealing surface is assured with the 5/16″ machined flanges, with welded O-ring seals. Experience has proven that this flange size is ideal to maintain header integrity and be pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to maximize performance. Hooker Competition headers have a standard finish that features a heat-cured, high-heat-resistant paint. Optionally, the famous Hooker Ceramic Thermal Barrier Coating is available.

Product Features:
  • Tuned-length primary tubes for better performance
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 16 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16″ machined flanges for a perfect seal
  • Industry’s best welds for durability
  • Designed for easy, trouble-free fit
  • All necessary hardware included for a complete installation
  • Works with factory power steering, power brakes and air conditioning
See More

Flowtech – Afterburner Headers (Part No.49150FLT)

Afterburner Headers

from

$419.99
FLOWTECH’s Afterburner Turbo Chamber Headers represent the first new major design change in exhaust technology in decades. This designs combines the race-proven 4 into 1 design with the torque managing capabilities of a Tri-Y header. The turbo chamber helps smooth out exhaust turbulence for increased performance and a broad power curve.

Product Features:
  • Horsepower and Torque increased over conventional header design
  • Big 3″ secondary collector for reduced back pressure
  • Tuned-length primary tubes combine with Velocity Tube to smooth out exhaust pulses
  • Patented Velocity Tube increases cylinder scavenging
  • All hardware and premium gaskets included for a complete installation
  • Increase Scavenging
  • Smooth Exhaust Pulses
See More

Patriot Exhaust – H8048 1 5/8" Header Chevrolet Truck Small Block Chevrolet 73-87 Raw (Part No.H8048)

H8048 1 5/8" Header Chevrolet Truck Small Block Chevrolet 73-87 Raw

from

$372.99
Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r

Product Features:
  • Patriot Exhaust H8048 1 5/8″ Header Chevrolet Truck Small Block Chevrolet 73-87 Raw
  • Patriot offers headers for many applications at prices you can afford.
See More

JBA Performance – 1830S-6Js 1 5/8" Header Shorty Stainless Steel Gm Truck 5.0/5.7L With Carburetor Silver Ceramic (Part No.1830S-6JS)

1830S-6Js 1 5/8" Header Shorty Stainless Steel Gm Truck 5.0/5.7L With Carburetor Silver Ceramic

from

$1072.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1830S-6JS 1 5/8″ Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic
  • Mandrel bent stainless steel tube
See More

Hooker Headers – Super Competition Long Tube Headers – Painted (Part No.2841HKR)

Super Competition Long Tube Headers - Painted

from

$1025.99
Hooker has long been known for its dominance of the drag racing circuit, but did you know that Hooker can help the off-road enthusiast scorch the deserts, mountains and swamps of the world Hooker Headers use long tube lengths and long transition collectors to produce monstrous low-mid range torque without sacrificing top end horsepower. Each Hooker header is designed to provide the finest fit and most durable construction available on the market today. Hooker offers a complete line of full length and emission compatible headers for the off-road enthusiast to choose from. Whether it be a rock crawling Jeep or a 1000 mile desert racer, Hooker can bring your performance expectations to a new level.

Product Features:
  • Tuned-length primary tubes for maximum exhaust scavenging and velocity
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 18 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16″ machined flanges for a perfect seal
  • Industry’s best welds for durability
  • Designed for optimal performance
  • All necessary hardware included for a complete installation
See More

JBA Performance – 1830S-6 1 5/8" Header Shorty Stainless Steel Gm Truck 5.0/5.7L With Carburetor (Part No.1830S-6)

1830S-6 1 5/8" Header Shorty Stainless Steel Gm Truck 5.0/5.7L With Carburetor

from

$906.99
JBA shorty headers are one of the best performance upgrades available for any application. Hot Rodmagazine rated headers as one of the top 10 power parts installed on a vehicle. JBA shorty headers aresignificantly less restrictive than the stock manifol

Product Features:
  • JBA Performance Exhaust 1830S-6 1 5/8″ Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor
  • Mandrel bent stainless steel tube
See More

Hooker BlackHeart – Lt Swap Exhaust Manifolds – Stainless Steel – Polished Finish (Part No.BHS3117)

Lt Swap Exhaust Manifolds - Stainless Steel - Polished Finish

from

$869.99
Hooker Blackheart now offers stainless steel versions of our popular cast iron lineup of LT swap exhaust manifolds based on the BHS516 and family. The new stainless steel manifolds offer a number of advantages over the cast iron version, including increased durability, reduced weight, and improved corrosion resistance. The shorty tight tuck design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. These are available in both natural cast and polished depending on the look you’re going for and all hardware is included (gaskets, bolts, and flanges).

Product Features:
  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Polished finish for a standout appearance. Also available in natural cast finish.
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
See More

Patriot Exhaust – H8054-1 1 3/4" Header Chevrolet Truck Big Block Chevrolet 73-87 Coated (Part No.H8054-1)

H8054-1 1 3/4" Header Chevrolet Truck Big Block Chevrolet 73-87 Coated

from

$724.99
Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r

Product Features:
  • Patriot Exhaust H8054-1 1 3/4″ Header Chevrolet Truck Big Block Chevrolet 73-87 Coated
  • Patriot offers headers for many applications at prices you can afford.
See More

Hooker Headers – Exhaust Header (Part No.2301HKR)

Exhaust Header

from

$716.99
Universal SUPER COMPETITION headers are great for custom car, truck, or hot rod where a specific fit tuned SUPER COMPETITION header is not available. They work great for those tight-fit installations where frame rails are close to the engine block. These headers can not be used with factory side engine mounts. The collector exits parallel with the oil pan rail, maximum ground clearance is allowed. These headers come complete with gaskets, header bolts and collector reducers. These headers come available in chrome, high heat resistant black paint or Hookers Metallic Ceramic Thermal Barrier Coating.

Product Features:
  • All necessary hardware included for a complete installation
  • Designed for optimal performance
  • Industry’s best welds for durability
  • Machined flanges for a perfect seal
  • Easy installation – can be used with stock motor mounts
  • Tight-tuck design for narrow frame rails
  • Light weight & sturdy 18 gauge tubing
  • Mandrel-bent tubing for smooth exhaust flow
  • Tuned-length primary tubes for maximum exhaust scavenging and velocity
See More

Patriot Exhaust – H8048-1 1 5/8" Header Chevrolet Truck Small Block Chevrolet 73-87 Coated (Part No.H8048-1)

H8048-1 1 5/8" Header Chevrolet Truck Small Block Chevrolet 73-87 Coated

from

$674.99
Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r

Product Features:
  • Patriot Exhaust H8048-1 1 5/8″ Header Chevrolet Truck Small Block Chevrolet 73-87 Coated
  • Patriot offers headers for many applications at prices you can afford.
See More

Hooker BlackHeart – Lt Swap Exhaust Manifolds, Stainless Steel, Natural Cast (Part No.BHS3116)

Lt Swap Exhaust Manifolds, Stainless Steel, Natural Cast

from

$665.99
Hooker Blackheart now offers stainless steel versions of our popular cast iron lineup of LT swap exhaust manifolds based on the BHS516 and family. The new stainless steel manifolds offer a number of advantages over the cast iron version, including increased durability, reduced weight, and improved corrosion resistance. The shorty tight tuck design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. These are available in both natural cast and polished depending on the look you’re going for and all hardware is included (gaskets, bolts, and flanges).

Product Features:
  • 2.5-inch outlet diameter offers improved flow for maximum performance from a cast exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Plain as-cast finish for a factory appearance. Also available in polished.
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Stainless Steel construction to provide unmatched durability and corrosion resistance
See More

Flowtech – Upright Headers (Part No.11553FLT)

Upright Headers

from

$631.99
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4″ tube diameters are ideal for even big cubic inch Big Block Chevy engines.

Product Features:
  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 2-1/4″ tubing diameter for increased exhaust flow increasing performance and improved throttle response
  • Extended 4″ collector for maximum strength and exhaust flow
  • Extra thick 7/16″ header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
  • Center of exhaust port to end of collector length is 33-1/2″
See More

Hooker Headers – Competition Long Tube Headers – Ceramic Coated (Part No.2452-1HKR)

Competition Long Tube Headers - Ceramic Coated

from

$614.99
Does not fit with angel plug or raised port heads. Hooker Competition headers offer the best value in the high performance header market. Designed for the value-conscious buyer, Hooker Competition headers offer premium features at a very competitive price. Made of durable 16 gauge mild steel tubing, the Hooker Competition header design utilizes a long transition collector to reduce back pressure and increase exhaust flow. A perfect sealing surface is assured with the 5/16″ machined flanges, with welded O-ring seals. Experience has proven that this flange size is ideal to maintain header integrity and be pliable enough to seal each exhaust port. Tubing is mandrel-bent to maintain metal strength and provide consistent tube diameter at radii to maximize performance.

Product Features:
  • Tuned-length primary tubes for better performance
  • Mandrel-bent tubing for smooth exhaust flow
  • Light weight & sturdy 16 gauge tubing
  • Long transition collector for decreased back pressure
  • 5/16″ machined flanges for a perfect seal
  • Industry’s best welds for durability
  • Designed for easy, trouble-free fit
  • All necessary hardware included for a complete installation
  • Works with factory power steering, power brakes and air conditioning
See More

Hooker BlackHeart – Lt Swap Exhaust Manifolds – Silver Ceramic Finish (Part No.BHS517)

Lt Swap Exhaust Manifolds - Silver Ceramic Finish

from

$614.99
These Hooker BlackHeart cast iron exhaust manifolds for the popular GM LT motor has a 2.5-inch outlet and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications. Their contoured design guides the exhaust directly toward the exit port for improved flow and minimal turbulence. Cast iron construction means they will provide years of leak-free performance with less under hood noise than traditional headers and their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. OE quality MLS flange gaskets and hardware are included to ensure excellent fitment and a leak-free installation and are available in plain as cast finish, black or silver ceramic coatings for reduced engine compartment temperatures, improved corrosion resistance and excellent styling.

Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
See More

Hooker BlackHeart – Lt Swap Exhaust Manifolds – Black Ceramic Finish (Part No.BHS518)

Lt Swap Exhaust Manifolds - Black Ceramic Finish

from

$549.99
These Hooker BlackHeart cast iron exhaust manifolds for the popular GM LT motor has a 2.5-inch outlet and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications. Their contoured design guides the exhaust directly toward the exit port for improved flow and minimal turbulence. Cast iron construction means they will provide years of leak-free performance with less under hood noise than traditional headers and their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. OE quality MLS flange gaskets and hardware are included to ensure excellent fitment and a leak-free installation and are available in plain as cast finish, black or silver ceramic coatings for reduced engine compartment temperatures, improved corrosion resistance and excellent styling.

Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
See More

Flowtech – Shorty/Block Hugger Headers (Part No.11551FLT)

Shorty/Block Hugger Headers

from

$538.99
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4″ tube diameters are ideal for even big cubic inch Big Block Chevy engines

Product Features:
  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 2-1/4″ tubing diameter for increased exhaust flow increasing performance and improved throttle response
  • Extended 4″ collector for maximum strength and exhaust flow
  • Extra thick 7/16″ header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
  • Center of exhaust port to end of collector length is 33-1/2″
See More

Hooker BlackHeart – Lt Swap Exhaust Manifolds – Natural Cast Finish (Part No.BHS516)

Lt Swap Exhaust Manifolds - Natural Cast Finish

from

$427.99
These Hooker BlackHeart cast iron exhaust manifolds for the popular GM LT motor has a 2.5-inch outlet and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications. Their contoured design guides the exhaust directly toward the exit port for improved flow and minimal turbulence. Cast iron construction means they will provide years of leak-free performance with less under hood noise than traditional headers and their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance. OE quality MLS flange gaskets and hardware are included to ensure excellent fitment and a leak-free installation and are available in plain as cast finish, black or silver ceramic coatings for reduced engine compartment temperatures, improved corrosion resistance and excellent styling.

Product Features:
  • 2.5 inch outlet diameter offers improved flow for maximum performance from a cast iron exhaust manifold
  • Tight tuck design provides universal fit for most popular chassis and a clean traditional muscle car appearance
  • Intended for GM LT engine swap applications where durability, quiet operation, and leak-free sealing is desired
  • Available in plain as-cast finish or with black or silver ceramic coatings for reduced engine compartment temps and improved corrosion resistance
  • Nickel plated steel mating flanges, MLS mating flange gaskets, and mating flange hardware included
  • Cast from Hi-Silicon-Moly Ductile Iron to provide durability and corrosion resistance
See More

Flowtech – Shorty/Block Hugger Headers (Part No.11545FLT)

Shorty/Block Hugger Headers

from

$399.99
They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.

Product Features:
  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 1-5/8″ and 1-3/4″ tubing diameters available for increased exhaust flow increasing performance and improved throttle response
  • 3″ collector for maximum strength and exhaust flow
  • Extra thick header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
See More

Flowtech – Shorty/Block Hugger Headers (Part No.11546FLT)

Shorty/Block Hugger Headers

from

$399.99
Flowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5/8″ and 1-3/4″ tube diameters are ideal for even big cubic inch Small Block Chevy engines. They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.

Product Features:
  • CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
  • Heavy duty 16-gauge 409SS tubing for increased strength and durability
  • 1-5/8″ and 1-3/4″ tubing diameters available for increased exhaust flow increasing performance and improved throttle response
  • 3″ collector for maximum strength and exhaust flow
  • Extra thick header flange for a leak-free seal and maximum strength
  • Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
See More

Top-Rated Exhaust Manifold and Header Brands For Your 1981 GMC C2500

When it comes to finding the perfect Exhaust Manifold and Header for your 1981 GMC C2500, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 9 trusted brands. We carry the most popular Exhaust Manifold and Header brands including Dorman and Hooker Headers, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $201.99. Purchasing a Exhaust Manifold and Header from us here at Advance Auto Parts is a smart move for both you and your 1981 GMC C2500, providing peace of mind with parts that meet or exceed OEM standards.

Popular Dorman 1981 GMC C2500 Exhaust Manifold and Headers

If you’re looking for a top-quality Exhaust Manifold and Header for your 1981 GMC C2500, Advance Auto Parts has exactly what you need with our selection of Dorman Exhaust Manifold and Headers. We have 1 Dorman Exhaust Manifold and Headers in stock for this fitment, all known for their durability and precision fit. With prices starting at just $201.99, you’ll find the perfect Exhaust Manifold and Header for your needs and budget. Dorman Exhaust Manifold and Headers for the 1981 GMC C2500 come highly rated, with over 2 customer reviews and an impressive average rating of 4.2 stars. Choosing a Dorman Exhaust Manifold and Header from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Direct Fit Exhaust Manifold: with Heat Shield
from $201.99
(2)
Direct Fit Exhaust Manifold: with Heat Shield
“The Manifold was very easy to install. I picked it up at noon, and had it all torn apart and put back together withing and hour or so, Advance always ”

Top-Quality Hooker Headers 1981 GMC C2500 Exhaust Manifold and Headers

For those in search of a high-quality Exhaust Manifold and Header for their 1981 GMC C2500, Advance Auto Parts offers a great selection of Hooker Headers Exhaust Manifold and Headers. With 1 Hooker Headers Exhaust Manifold and Headers in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Exhaust Manifold and Headers start at just $368.99, giving you a range of options to suit your budget. Backed by over 4 customer ratings and an average rating of 4.2 stars, Hooker Headers Exhaust Manifold and Headers provide both reliability and excellent performance. Choosing a Hooker Headers Exhaust Manifold and Header from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
Competition Long Tube Headers - Painted
from $368.99
(4)
Competition Long Tube Headers – Painted
“Was looking for a pair of headers to replace the stock manifolds on my son’s 1970 GMC truck that was quality but yet affordable. These were perfect!!”

FAQs for 1981 GMC C2500 Exhaust Manifold and Headers

What are the best-selling Exhaust Manifold and Headers for 1981 GMC C2500s?

Out of 36 Exhaust Manifold and Headers that fit 1981 GMC C2500s, the following parts are the top sellers:

What’s the price range for 1981 GMC C2500 Exhaust Manifold and Headers?

The prices of Exhaust Manifold and Headers for the 1981 GMC C2500 range from $24.99 up to $1,072.99 for the most premium parts.

What is the average price of an Exhaust Manifold and Header for a 1981 GMC C2500?

The average price for Exhaust Manifold and Headers for the 1981 GMC C2500 is $442.78. Keep in mind the variety of part types within our Exhaust Manifold and Header category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Exhaust Manifold and Headers for other GMC C2500 model years?

Yes, we carry Exhaust Manifold and Headers for 19 model years of GMC C2500s between 1979 and 2000. The following model years are the most popular for Exhaust Manifold and Header purchases: 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, and 1992.

What are the cheapest Exhaust Manifold and Headers for my 1981 GMC C2500?

Does Advance Auto Parts sell Exhaust Manifold and Headers for any other 1981 GMC models?

What are the top-rated Exhaust Manifold and Headers that fit the 1981 GMC C2500?

The one 1981 GMC C2500 Exhaust Manifold and Header we have in stock is the For Use With Chevy Small Block, Black Oxide, Black, Chrome Moly, Set Of 12. It costs $24.99.

What types of Exhaust Manifold and Headers do you sell for my 1981 GMC C2500?

As of 6/2/26, these are some of the most in-demand types of Exhaust Manifold and Headers for a 1981 GMC C2500:

Can I get help with 1981 GMC C2500 Exhaust Manifold and Header orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust Manifold and Headers and more.

What is your return policy for GMC C2500 Exhaust Manifold and Headers?

Advance Auto Parts keeps returns simple. For new GMC C2500 Exhaust Manifold and Headers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.