1977 GMC G25 Valve Cover and Cylinder Heads

Essential 1977 GMC G25 Valve Cover and Cylinder Heads

Mr. Gasket – Chrome Valve Cover Wing Bolts (Part No.9824)

Chrome Valve Cover Wing Bolts

from

$15.99
Chrome-plated for beauty and durability, wing bolts make valve cover removal fast & easy. They are precision-engineered and feature extra-long threads to accommodate Mr. Gasket re-usable valve cover gasket & custom valve covers.

Product Features:
  • Fits Chevy V8
  • Standard Y Top 1/4 In-20 X 5/8 in L
  • Chrome Plated Steel
  • Overall Length: 4.64″
  • Installed Length: 4.00″
  • Pack of 4
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Sealed Power – Engine Rocker Arm Ball (Part No.MR-1783)

Engine Rocker Arm Ball

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$0.65
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Competition Cams – SUPER VALVE LOCKS, 3/8" 1 ST (Part No.612-16)

SUPER VALVE LOCKS, 3/8" 1 ST

from

$553.99
Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights

Product Features:
  • For simplicity, any Super Lock fits any COMP Cams 10° retainer – just choose the correct lock for you valve size and application
  • Super Locks are recommended in all race applications
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Sealed Power – Engine Exhaust Valve (Part No.V-1904)

Engine Exhaust Valve

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$6.49
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9731)

Performer Series Retainer (Qty 16)

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$128.99
Product Features:
  • Use W/ Valve Springs Part #5762, 5795
  • Use W/ Locks Part #9612
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Edelbrock – RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam (Part No.60759)

RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam

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$1014.99
Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
  • 70cc Combustion Chambers Improve Performance
  • Retain Stock Compression Ratio
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ARP Auto Racing – ARP Cylinder Head Stud Kit (Part No.234-4301)

ARP Cylinder Head Stud Kit

from

$316.99
ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated for superior to “aircraft” quality alloy steels. Secondly, each stud is placed vertically into special racks and precisely heat-treated to 200,000 psi for the 8740 material and 220,000 psi for the ARP2000 material. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. 

Product Features:
  • 1/2″ 12-Point, 3/16″ Allen Socket Size(s)
  • 8740 Chromoly
  • Black Oxide
  • Small Block Chevy
  • Sold As A Kit
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Dorman – Lock Nut, Type 8, 7/16-20 In., GM (sold by each) (Part No.693-022)

Lock Nut, Type 8, 7/16-20 In., GM (sold by each)

from

$3.49
This engine rocker arm nut is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine rocker arm nut matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this nut is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Edelbrock – Performer-Plus Hydraulic Flat Tappet Lifters (Part No.9738)

Performer-Plus Hydraulic Flat Tappet Lifters

from

$127.99
Product Features:
  • Replacement Lifters For Performer Cam
  • 50 State Legal
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Mr. Gasket – Cylinder Head Dowel Pins (Part No.4375)

Cylinder Head Dowel Pins

from

$14.99
Dowel pins are precision machined and case hardened for accurate head alignment. Two per set. 5/16 inch x 5/8 inch

Product Features:
  • Precision Machined
  • Case Hardened
  • Give Accurate Alignment
  • 2 Per Set
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Felpro – Cylinder Head Gasket Set (Part No.HS 7733 PT-2)

Cylinder Head Gasket Set

from

$35.49
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:
  • Head sets contain gaskets and seals necessary for a valve grind or head reconditioning job
  • Application specific design to ensure a perfect fit and premium seal
  • Premium quality parts you can trust
  • Engineered and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Contains all the parts needed to complete the repair unless otherwise noted
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ARP Auto Racing – For Use With Chevy Small Block, Black Oxide, Chrome Moly, With Washers (Part No.134-3601)

For Use With Chevy Small Block, Black Oxide, Chrome Moly, With Washers

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$109.99
High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers.

Product Features:
  • High Performance Head Bolts Are Available With A Reduced Wrenching Hex Or 12 Point
  • Wide Area Flanged Head That Eliminates The Need For Valve Train Removal To Facilitate Cylinder Head Retorquing
  • Rated At 180,000 PSI Tensile Strength
  • High Performance Head Bolts Are Stronger
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Sealed Power – Engine Rocker Arm Kit (Part No.R-826)

Engine Rocker Arm Kit

from

$3.49
Sealed Power parts provide innovative designs, use leading-edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:
  • Complete rocker arm assembly
  • 1 Arm
  • 1 Ball
  • 1 Nut
  • Utilizes ISO & QS certified manufacturing
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Dorman – Pipe Plug C.S. Square 1/4-18 Npt, Head Size 1/4 In. (sold by each) (Part No.090-067)

Pipe Plug C.S. Square 1/4-18 Npt, Head Size 1/4 In. (sold by each)

from

$4.99
This engine cylinder head plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this engine cylinder head plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95 (Part No.5794)

Complete Sure Seat Valve Spring Kit for Chevy 262-400 V8 1957-95

from

$151.99
Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks are black oxide coated. Non-rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • Complete Kit: Includes Retainers And Locks
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Includes Superior Quality Steel Retainers
  • Includes 7 deg. Heat-Treated Valve Stem Locks
  • Retainers and Locks Black Oxide Coated
  • Non-Rotator Style: Dyno Tested and Street Proven
  • Great Match to Edelbrock Camshaft Kit
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Spectre – Valve Cover (Part No.5321)

Valve Cover

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$8.99
Spectre’s Valve Cover Spreader Bar Kits are designed to improve the seal between your valve cover and cylinder head. Constructed from high quality heavy gauge steel, the spreader bars help to evenly distribute clamping pressure, preventing leaks. Featuring a triple chrome-plated finish, this kit is designed to fit Chevrolet 265-400 Small Block engines.

Product Features:
  • Designed for Chevrolet 265-400 Small Block engines
  • Features a triple chrome-plated finish
  • Constructed from heavy gauge steel
  • Engineered to improve valve cover seal
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ARP Auto Racing – 1.75"Oal Stud, 0.8"D Adjuster Third, 3/8"-24, 7/16"-14, 0.7"D Screw-In, Set Of 16 (Part No.134-7101)

1.75"Oal Stud, 0.8"D Adjuster Third, 3/8"-24, 7/16"-14, 0.7"D Screw-In, Set Of 16

from

$59.99
If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in, you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within 0.005 T.I.R. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extra large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models. To be used with ARP patented Perma Loc(TM) adjusters.

Product Features:
  • Made Of 8740 Chrome Moly Forgings
  • Heat Treated To 180,000 PSI
  • Excellent For Elapsed Time Bracket Racing, Limited Rule Oval Track Competition And Street Use
  • Lengths Are Exact Designed To Provide Positive Seating Every Time
  • Set of 16
  • .800″ Adjuster Thread Length
  • 3/8-24 Shank Diameter and Thread
  • 3/8″ Typical Small Block Application
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ARP Auto Racing – ARP Rocker Arm Stud Kit (Part No.234-7201)

ARP Rocker Arm Stud Kit

from

$99.99
ARP rocker studs are concentric within .005″, extra-large radius base offers greater resistance to flex. Note: To be used ONLY with ARP’s patented Perma-Loc adjusters. Made of 8740 chrome moly forgings and heat-treated to 180,000 PSI. Tip ground flush for optimum adjuster seating.

Product Features:
  • 7/16″-14 Thread Size(s)
  • .700″ Thread Length
  • 8740 Chromoly
  • 1.75″ Effective Stud Length
  • Set of 16
  • .800″ Adjuster Thread Depth
  • 3/8″-24 Shank Diameter and Thread
  • 3/8″ Typical Small Block Application
  • Black Oxide
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Edelbrock – Valve Seat for B/B Chevy heads with 2.19" Valves (Part No.9716)

Valve Seat for B/B Chevy heads with 2.19" Valves

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$22.99
Product Features:
  • 2.19 in.
  • Ductile Iron Material
  • Intake
  • Sold Individually
  • Made In The USA
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Edelbrock – Valve Seat for S/B Chevy heads with 1.60" Valves (Part No.9710)

Valve Seat for S/B Chevy heads with 1.60" Valves

from

$18.99
Product Features:
  • Valve Seats
  • Performer Series
  • 50-State Street Legal
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Spectre – Engine Dress Steel Up Kit (Part No.54083)

Engine Dress Steel Up Kit

from

$119.99
Spectre’s Engine Dress-Up Kit was designed for the ’58-’86 Chevrolet small block 265-400. This kit includes: stock height baffled covers, chrome T-bar hold downs, chrome PCV breather, chrome breather, chrome oil filler cap, grommets, and a stainless steel braided PCV hose with red/blue Magna-Clamps. Designed for use with OE specifications for fit and function, Spectre products are engineered to perform as good as they look.

Product Features:
  • For Chevrolet small block 265 and 400
  • Kit includes: stock height baffled covers, chrome T-bar hold downs, chrome PCV breather, chrome breather, chrome oil filler cap, grommets, and a stain
  • Designed for use with OE specifications for fit and function
  • Made from high quality material
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Sealed Power – Push Rod (Part No.RP-3212R)

Push Rod

from

$8.49
Speed-Pro delivers the power you need and the value and quality that you deserve. Whether you are running at the track, chasing trophies on the strip, or just cruising down the road, count on Speed-Pro to provide the best value in HP engine components

Product Features:
  • Professional racing rods
  • 1-Piece forged end rods
  • Hardened for guide plate compatibility
  • Centerless ground to guarantee concentricity
  • Black oxide coated for corrosion protection
  • Part numbers are laser etched on each pushrod for positive ID
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Sealed Power – Engine Push Rod (Part No.RP-3104)

Engine Push Rod

from

$4.99
Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.
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Mr. Gasket – Ultra Seal: Head Gasket (Part No.5801G)

Ultra Seal: Head Gasket

from

$64.99
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.190 inch, Compressed thickness 0.038 inch

Product Features:
  • Five layer (graphite core/perforated steel outer layers) composite construction
  • Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
  • Provides excellent stability, compressibility and high temperature endurance
  • Coated with high temperature silicone to ensure sealing of engine fluids
  • Will not brinell (indent) aluminum cylinder heads
  • For high performance street, drag race and oval track use
  • Compatible w/High Octane Fuel
  • Compatible With Exotic Fuel
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Felpro – Cylinder Head Gasket: Composite, Without Head Bolts (Part No.8364 PT)

Cylinder Head Gasket: Composite, Without Head Bolts

from

$27.99
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:
  • PermaTorque head gaskets meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Built to exceed all original equipment specifications
  • Provides the robust seal needed to contain peak combustion pressures and temperatures
  • Validated for fit, form, and function
  • Unsurpassed quality you can trust
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Spectre – Valve Cover (Part No.5210)

Valve Cover

from

$79.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for 1958-1986 Chevrolet Small Block 265-400 engines, this valve cover features chrome-plated steel construction and a smooth design. Sold in pairs, this tall profile cover is baffled to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for 1958-1986 Chevrolet Small Block 265-400 engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Triple chrome-plated steel construction
  • Tall profile
  • Features OEM style sealing edge
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Edelbrock – Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel (Part No.4449)

Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel

from

$56.99
The Edelbrock #4449 Signature Series Valve Covers are designed for Chevrolet 262-400 ’59-86 applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:
  • Small Block Chevy 262-400 1959-86
  • Short
  • Chrome Steel
  • Set Of Two
  • Rubber Grommets For Breather
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Edelbrock – Signature Series Valve Covers: Big Block Chevy 396-502 1965 & Up, Chrome Steel (Part No.4480)

Signature Series Valve Covers: Big Block Chevy 396-502 1965 & Up, Chrome Steel

from

$78.99
The Edelbrock #4480 Signature Series Valve Covers are designed for Chevrolet 396-502 V8 ’65 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:
  • Big Block Chevy 396-502 1965 & Up
  • Short
  • Chrome Steel
  • Set Of Two
  • Rubber Grommets For Breather
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1977 GMC G25 Valve Cover and Cylinder Heads

Maybe you’re in the middle of a full rebuild of that 1977 GMC G25. Maybe you just need a couple of Valve Cover and Cylinder Heads. Either way, Advance Auto Parts has 65 different Valve Cover and Cylinder Heads in our inventory ranging from $0.43 to $1,575.99. That means you can find the exact parts or products you need to keep that 1977 GMC G25 running smoothly.

Valve Cover and Cylinder Heads are only as good as their brand. We stock 8 different brands to make sure you have plenty of trusted parts to choose from for your 1977 GMC G25. Sealed Power, Felpro, and Mr. Gasket are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Valve Cover and Cylinder Heads for your 1977 GMC G25, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 454 reviews in this category, some of the top rated parts include Chrome Valve Cover Wing Bolts with 4.4 stars and Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel with 4.4 stars.

So if you’re in the market for aftermarket Valve Cover and Cylinder Heads to keep your 1977 GMC G25 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Valve Cover and Cylinder Heads Brands To Make Your 1977 GMC G25 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1977 GMC G25 demands trusted brand parts and products to keep it running. Many trusted brands of Valve Cover and Cylinder Heads make up Advance Auto Parts’ inventory, and all are ready to help make your G25 the best it can be. Be sure to browse some of our top Valve Cover and Cylinder Heads brands and parts.

Popular Edelbrock Valve Cover and Cylinder Heads

We carry Edelbrock parts in our stock across Engine Valve Springs categories, plus more. For a 1977 GMC G25, our most popular Edelbrock Valve Cover and Cylinder Heads include:
Sure Seat Valve Springs for Chevy 262-400 V8 1957-95
from $60.99
(2)
Sure Seat Valve Springs for Chevy 262-400 V8 1957-95
Engine Valve Springs

FAQs for 1977 GMC G25 Valve Cover and Cylinder Heads

What are the most purchased Valve Cover and Cylinder Heads for the 1977 GMC G25?

Out of 65 Valve Cover and Cylinder Heads for the 1977 GMC G25, the most popular in our inventory are:
Engine Valve Lifter
from $13.99
(15)
Engine Valve Lifter
Engine Valve Lifters
Engine Push Rod
from $2.99
(5)
Engine Push Rod
Push Rods
Engine Rocker Arm Nut
from $0.95
(4)
Engine Rocker Arm Nut
Rocker Arm Nuts

What are the top-rated 1977 GMC G25 Valve Cover and Cylinder Heads?

Top-rated Valve Cover and Cylinder Heads for your 1977 GMC G25 based on customer reviews/ratings are:
Chrome Valve Cover Wing Bolts
from $15.99
(9)
Chrome Valve Cover Wing Bolts
“good”
Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel
from $56.99
(7)
Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Chrome Steel
“Used to replace my bent up covers easy install bolted right up”
Engine Rocker Arm Kit
from $3.49
(6)
Engine Rocker Arm Kit
“The rocker was what i needed and was hard to find. You guys helped out well and were right in the neighborhood thanks”