1975 GMC G25 Performance Engines

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Keep Your 1975 GMC G25 in Top Shape with Quality Performance Engines

Whether you’re repairing or upgrading your Performance Engine, using high-quality parts is key to keeping your 1975 GMC G25 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Intake Manifold Gaskets, Performance Water Outlets, and Performance Water Outlet Gaskets. 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 Performance Engines from Trusted Brands

Looking for a reliable Performance Engine? We’ve got you covered with options from brands you know and trust like FEL-PRO Performance, Competition Cams, and Edelbrock. For example, FEL-PRO Performance Performance Engines start at just $42.49 with an average 4.2 star rating. Competition Cams and Edelbrock offer similar pricing and quality, backed by strong customer feedback. With over 652 reviews and a solid 4.6 star average, you can shop with confidence knowing other GMC G25 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1975 GMC G25 Performance Engine at Advance Auto Parts is around $342.25, with a range that starts at $8.99 and goes up to $1,623.99. With 189 options in stock from 9 trusted brands, finding the right fit is easy. Popular picks like Mr. Gasket Water Outlet Gasket, 740C, Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701, and Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661 start at just $10.39 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Engine, don’t forget to check out other key components like Performance Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1975 GMC G25 in peak condition, inside and out.

Essential 1975 GMC G25 Performance Engines

Edelbrock – Edelbrock Pushrod Set for Small-Block Chevy V-8 Engine Applications, 9630 (Part No.9630)

Edelbrock Pushrod Set for Small-Block Chevy V-8 Engine Applications, 9630

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$209.99
“Edelbrock part No: 9630 Pushrods are designed for small-block Chevy V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precise formed wedged ends for a high quality fit with the cup seats. A black oxide finish is added for corrosion resistance. Pushrod Specifications: – Outside Diameter: 5/16″” – Length: 7.8″” – Stock length”
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Edelbrock – Edelbrock Sure Seat Valve Springs for Big-Block Chevy 396-402-427-454 V8, 5862 (Part No.5862)

Edelbrock Sure Seat Valve Springs for Big-Block Chevy 396-402-427-454 V8, 5862

from

$85.99
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 black oxide coated. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.
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Mr. Gasket – Mr. Gasket Timing Cover Seal, 17 (Part No.17)

Mr. Gasket Timing Cover Seal, 17

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$37.09
If you are changing your camshaft or replacing the timing set, make sure to replace this seal at the same time! Made from Nitrile rubber.
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Competition Cams – Competition Cams High Energy Timing Set, 3200 (Part No.3200)

Competition Cams High Energy Timing Set, 3200

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$66.99
COMP Cams High Energy Timing Chain Sets include precision cast iron camshaft and crank gear sprockets and premium quality link belt type timing chain. These sets exceed all original equipment timing chain specifications and are ideal for stock replacement and mild performance applications.
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Spectre – Spectre Chevrolet Small Block V8 Harmonic Balancer Bolt Kit, 4699 (Part No.4699)

Spectre Chevrolet Small Block V8 Harmonic Balancer Bolt Kit, 4699

from

$8.99
Spectre’s Harmonic Balancer Bolt Kit is designed to fit Chevrolet Small Block 265-400 V8 engines. This grade 8 bolt is 2-1/2 inches long, and features a plated finish for corrosion resistance. This kit also includes a security lock washer.
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Weiand – Weiand Action +Plus Intake Manifold, 8120 (Part No.8120)

Weiand Action +Plus Intake Manifold, 8120

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$254.99
New Everbright(TM) Manifold coating now available on the most popular Weiand and Holley intakes uses proprietary vacuum metalizing technology combined with a protective clear powdercoat to provide long lasting, virtually maintenance free polished looks.
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Spectre – Spectre W3 Engine Kit Sb Chevy, 54083 (Part No.54083)

Spectre W3 Engine Kit Sb Chevy, 54083

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$126.99
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.
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Edelbrock – Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7802 (Part No.7802)

Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7802

from

$39.99
Edelbrock part No: 7802 Performer-Link timing chain is for use with Edelbrock or stock cams. They have a solid-bushing chain for a true bearing surface that rolls with the sprockets, eliminating chain stretch. Cam sprockets are made from 35,000 psi tensile strength cast iron. Crank sprockets are made from billet SAE-1144 steel and induction heat treated. Four Performer-Link sets are stock replacement parts and 50-state legal (see listings in bold type). All other sets have three keyway setting points to ensure accurate timing selection for early or late-model vehicles. Performer-Link timing sets are not for use above 6500 rpm. Performer roller chain sets are engineered to operate up to 6500 rpm. Never hammer directly on chain or sprockets. You can crack the hardened links and pins and cause early failures. Use a sleeve for installations that require hammering, a brass drift punch may be used if you carefully alternate blows on either side of the sprocket to avoid cocking. Never stretch the chain with a screwdriver. Check for clearance between the timing chain and block and between the chain and front cover before reassembly. Be sure that both cam and crank sprockets are exactly in line with each other. Misalignment can cause chain to break.
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Mr. Gasket – Mr. Gasket Cylinder Head Dowel Pins, 4377 (Part No.4377)

Mr. Gasket Cylinder Head Dowel Pins, 4377

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$21.69
Big Block Chevrolet tubular head dowel, .638/.639 inch o.d. (outer diameter) by 1/2 inch. Packaged two per set. These hard to find dowel pins are precision machined then case hardened for accurate alignment in engine assembly.
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FEL-PRO Performance – FEL-PRO Performance Engine Crankshaft Seal Kit, 2912 (Part No.2912)

FEL-PRO Performance Engine Crankshaft Seal Kit, 2912

from

$38.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Competition Cams – "Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16" (Part No.612-16)

"Competition Cams SUPER VALVE LOCKS, 3/8"" 1 ST, 612-16"

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$43.99
Inside tang-to-taper relationship held tightly for repeatable valve spring installed heights
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Edelbrock – Edelbrock Performer-Plus Hydraulic Flat Tappet Lifter Set, 9738 (Part No.9738)

Edelbrock Performer-Plus Hydraulic Flat Tappet Lifter Set, 9738

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$134.99
Edelbrock part No: 9738 Performer-Plus lifter set for S/B & B/B Chevy is designed for use with Edelbrock Performer-Plus or equivalent camshafts. Sold in complete sets.
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Competition Cams – Competition Cams High Energy 206/206 Hydraulic Flat Cam K-Kit, K11-202-3 (Part No.K11-202-3)

Competition Cams High Energy 206/206 Hydraulic Flat Cam K-Kit, K11-202-3

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$582.99
Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.
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Competition Cams – Competition Cams MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST, 1412-16 (Part No.1412-16)

Competition Cams MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST, 1412-16

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$217.99
“These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 applications are the ultimate street rocker. With a 3/8″” stud diameter and 1.52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed from 8620 chromemoly steel, which is a superior material that will not flex and assures maximum lift. Their roller tip reduces friction, while stiff design and superior ratio accuracy yield more effective valve lift. With a 15 to 30 horsepower increase over other rocker arms, Magnum Roller Rockers are perfect for performance applications with less than 350 lbs. open spring pressure. Don’t accept inferior products or cheap knock-offs, look for the COMP Cams logo stamped into the underside of every Magnum Rocker.”
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FEL-PRO Performance – FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1047 (Part No.1047)

FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1047

from

$53.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Mr. Gasket – Mr. Gasket O-Ring Style Chrome Water Neck, 2557 (Part No.2557)

Mr. Gasket O-Ring Style Chrome Water Neck, 2557

from

$33.59
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
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Competition Cams – Competition Cams Valve Seals, 503-16 (Part No.503-16)

Competition Cams Valve Seals, 503-16

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$223.99
COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don’t forget the valve seals.
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Mr. Gasket – Mr. Gasket High Performance Thermostat – 160 Degree Brass & Copper, 4363 (Part No.4363)

Mr. Gasket High Performance Thermostat - 160 Degree Brass & Copper, 4363

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$31.99
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.
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Edelbrock – Edelbrock RPM Big-Block Chevy Rectangular Port Cylinder Head Hydraulic Roller Cam, 60555 (Part No.60555)

Edelbrock RPM Big-Block Chevy Rectangular Port Cylinder Head Hydraulic Roller Cam, 60555

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$1394.99
Edelbrock RPM Big-Block Chevy Rectangular Port Cylinder Head Hydraulic Roller Cam, 60555.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1602 (Part No.1602)

FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1602

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$23.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Mr. Gasket – Mr. Gasket Ultra Seal: Oil Pan Gasket, 5884 (Part No.5884)

Mr. Gasket Ultra Seal: Oil Pan Gasket, 5884

from

$44.39
Manufactured from cellulose/nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For original equipment replacement, high performance street, drag race and oval track.
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Competition Cams – Competition Cams Magnum 253/253 Hydraulic Flat Cam, 11-214-4 (Part No.11-214-4)

Competition Cams Magnum 253/253 Hydraulic Flat Cam, 11-214-4

from

$309.99
An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.
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Edelbrock – Edelbrock Performer Series Retainer, 9721 (Part No.9721)

Edelbrock Performer Series Retainer, 9721

from

$106.99
Edelbrock Valve Spring Retainers are made of superior quality steel and are machined and heat treated for maximum strength. They feature a black oxide finish to prevent rust and corrosion
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Mr. Gasket – Mr. Gasket Water Outlet Gasket, 740C (Part No.740C)

Mr. Gasket Water Outlet Gasket, 740C

from

$10.39
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.
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Edelbrock – Edelbrock Intake Manifold Gasket, 7215 (Part No.7215)

Edelbrock Intake Manifold Gasket, 7215

from

$54.99
Edelbrock part No: 7215 Intake Gaskets for 1958-1986 E-Tec 200 Small-Block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology does not use solvents making our gaskets environmentally friendly. Impervious to most chemicals, this synthetic fiber composite provides a high recovery under load. This means that when compressed, the gasket will conform to any imperfections on the sealing surface even using lower flange pressures. A nitrile bead around each port opening makes the seal even better.
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B & M – B & M Holeshot 3000, 20413 (Part No.20413)

B & M Holeshot 3000, 20413

from

$921.99
This Holeshot 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 TH350, 375B (not 350C). Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 3000 converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. Has both 10.75 and 11.50-inch bolt circles.
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Edelbrock – Edelbrock Engine Water Pump Gasket Set, 7251 (Part No.7251)

Edelbrock Engine Water Pump Gasket Set, 7251

from

$14.99
Edelbrock No: 7251 Engine Water Pump Gasket Set Chevy Small Block. Is it time to rebuild your Edelbrock mechanical water pump- No problem- these Edelbrock water pump gaskets will keep your water pump leak-free. They are manufactured from quality materials and can be installed easily without any modifications
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Spectre – Spectre Bolt Kit Intake Hex Head, 4652 (Part No.4652)

Spectre Bolt Kit Intake Hex Head, 4652

from

$10.99
Spectre’s Intake Bolt and Washer Set is engineered to provide premium quality hardware for Chevrolet 265-400 and Chrysler 273-440 small block engines. Measuring 3/8 inch-16 by 1 inch, these grade 5 bolts feature a corrosion resistant zinc-plated finish and hex heads to ensure easy installation. This kit includes 12 bolts and washers.
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Most Popular Performance Engine Intake Manifold Gaskets for 1975 GMC G25s

Enhance your 1975 GMC G25 with one of the 10 Performance Engine Intake Manifold Gaskets we have in stock, starting at just $27.99.

Edelbrock – Edelbrock Intake Manifold Gasket, 7215 (Part No.7215)

Edelbrock Intake Manifold Gasket, 7215

from

$54.99
Edelbrock part No: 7215 Intake Gaskets for 1958-1986 E-Tec 200 Small-Block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology does not use solvents making our gaskets environmentally friendly. Impervious to most chemicals, this synthetic fiber composite provides a high recovery under load. This means that when compressed, the gasket will conform to any imperfections on the sealing surface even using lower flange pressures. A nitrile bead around each port opening makes the seal even better.
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Mr. Gasket – Mr. Gasket Ultra-Seal Intake Manifold Gasket With Silicone Beading, 5821 (Part No.5821)

Mr. Gasket Ultra-Seal Intake Manifold Gasket With Silicone Beading, 5821

from

$36.99
Mr. Gasket Ultra-Seal Intake Manifold Gasketss are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For original equipment replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.
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FEL-PRO Performance – FEL-PRO Performance Engine Intake Manifold Gasket Set, 1212 (Part No.1212)

FEL-PRO Performance Engine Intake Manifold Gasket Set, 1212

from

$27.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Mr. Gasket – Mr. Gasket Intake Gasket, 121 (Part No.121)

Mr. Gasket Intake Gasket, 121

from

$33.59
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.
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Edelbrock – Edelbrock Intake Manifold Gasket, 7203 (Part No.7203)

Edelbrock Intake Manifold Gasket, 7203

from

$34.99
Edelbrock part No: 7203 Intake Gaskets for 1965-1990 & later Mark IV, Oval port 396-402-454 Big-Block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology does not use solvents making our gaskets environmentally friendly. Impervious to most chemicals, this synthetic fiber composite provides a high recovery under load. This means that when compressed, the gasket will conform to any imperfections on the sealing surface even using lower flange pressures. A nitrile bead around each port opening makes the seal even better.
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Mr. Gasket – Mr. Gasket Ultra Seal: Intake Gasket, 5828 (Part No.5828)

Mr. Gasket Ultra Seal: Intake Gasket, 5828

from

$49.99
Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer is required. For OE replacement, high-performance street, drag race, and oval track use. Includes manifold end seals and distributor gasket.
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Mr. Gasket – Mr. Gasket Intake Gasket, 143 (Part No.143)

Mr. Gasket Intake Gasket, 143

from

$51.99
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. This is a low density material that conforms well to irregular surfaces and has very good crush resistance at high flange pressures. They provide excellent sealing and durability as the material is designed for sealing gasoline, oils, water and coolant in applications up to 350 degrees Fahrenheit. While die-cut for an excellent fit, they can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.
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Mr. Gasket – Mr. Gasket Ultra Seal: Intake Gasket, 5818 (Part No.5818)

Mr. Gasket Ultra Seal: Intake Gasket, 5818

from

$59.39
Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For OE replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.
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Mr. Gasket – "Mr. Gasket Intake Gasket Set – Big Block Chevy, 396-454, Gen Iv, 1965-1990 – Rect Stock Port 1.75"" X 2.5"", 110" (Part No.110)

"Mr. Gasket Intake Gasket Set - Big Block Chevy, 396-454, Gen Iv, 1965-1990 - Rect Stock Port 1.75"" X 2.5"", 110"

from

$49.99
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. This is a low density material that conforms well to irregular surfaces and has very good crush resistance at high flange pressures. They provide excellent sealing and durability as the material is designed for sealing gasoline, oils, water and coolant in applications up to 350 degrees Fahrenheit. While die-cut for an excellent fit, they can be trimmed if necessary for modified port applications. Comes complete with front & rear manifold end seals. For original equipment replacement, high performance street, drag race and oval track.
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Edelbrock – Edelbrock Intake Manifold Gasket, 7202 (Part No.7202)

Edelbrock Intake Manifold Gasket, 7202

from

$28.99
Edelbrock part No: 7202 Intake Gaskets for 1991 & later Gen V & VI, Rectangular port 454 Big-block Chevy allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-2N Micropore technology does not use solvents making our gaskets environmentally friendly. Impervious to most chemicals, this synthetic fiber composite provides a high recovery under load. This means that when compressed, the gasket will conform to any imperfections on the sealing surface even using lower flange pressures. A nitrile bead around each port opening makes the seal even better.
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Best-Selling 1975 GMC G25 Performance Water Outlets

Upgrade your G25 with one of our 2 best-selling Performance Water Outlets, earning an average 4.5 stars rating across 11 reviews.

Mr. Gasket – Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661 (Part No.2661)

Mr. Gasket Precision Chrome Water Neck With O-Ring Style Seal For Leak-Free Operation, 2661

from

$32.99
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
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Mr. Gasket – Mr. Gasket O-Ring Style Chrome Water Neck, 2557 (Part No.2557)

Mr. Gasket O-Ring Style Chrome Water Neck, 2557

from

$33.59
Precision die cast, these water necks are first polished to a high luster, then chrome plated. Features an O-ring style seal to prevent water leaks. Comes with O-ring gasket and mounting bolts.
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Top-Quality Performance Water Outlet Gaskets for 1975 GMC G25s

Choose a high-quality OEM or aftermarket Performance Water Outlet Gasket for GMC G25s and enjoy top-notch performance from $10.39.

Mr. Gasket – Mr. Gasket Water Outlet Gasket, 740C (Part No.740C)

Mr. Gasket Water Outlet Gasket, 740C

from

$10.39
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.
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Top Picks for 1975 GMC G25 Performance Engine Cylinder Head Gaskets

Invest in one of our 10 durable Performance Engine Cylinder Head Gaskets for your 1975 GMC, knowing you’re getting trusted brands and expert craftsmanship.

FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1003 (Part No.1003)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1003

from

$42.49
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1004 (Part No.1004)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1004

from

$44.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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FEL-PRO Performance – FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037 (Part No.1037)

FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037

from

$64.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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FEL-PRO Performance – FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1010 (Part No.1010)

FEL-PRO Performance Steel core laminate Engine Cylinder Head Gasket, 1010

from

$51.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Mr. Gasket – Mr. Gasket Head Gasket, 1131G (Part No.1131G)

Mr. Gasket Head Gasket, 1131G

from

$40.29
Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today’s extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from .020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure.
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FEL-PRO Performance – FEL-PRO Performance Performance Cylinder Head Gasket, 1025 (Part No.1025)

FEL-PRO Performance Performance Cylinder Head Gasket, 1025

from

$74.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.
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FEL-PRO Performance – FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1047 (Part No.1047)

FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1047

from

$53.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Mr. Gasket – Mr. Gasket Head Gasket, 1134G (Part No.1134G)

Mr. Gasket Head Gasket, 1134G

from

$73.99
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermo conductivity (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. Gasket bore 4.100 inch, Compressed thickness 0.028 inch
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Edelbrock – Edelbrock Engine Gasket Set, 7361 (Part No.7361)

Edelbrock Engine Gasket Set, 7361

from

$146.99
The Edelbrock No: 7361 head gaskets provide the best sealing solution and are matched to Edelbrock cylinder heads for optimal performance. Edelbrock relies on industry leading head gasket manufactures to ensure our head gasket sets will provide the best fit and sealing properties when used with Edelbrock aluminum cylinder heads. Edelbrock head gaskets are manufactured from high-density materials and feature a superior design that performs under pressure and provides a long-lasting seal, without re-torqueing.
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Mr. Gasket – Mr. Gasket Ultra Seal: Head Gasket, 5801G (Part No.5801G)

Mr. Gasket Ultra Seal: Head Gasket, 5801G

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$79.09
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.
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Top-Rated Performance Intake Manifolds for 1975 GMC G25s

Make a smart move for your 1975 GMC G25 with products all priced from $18.79 to $895.99.

Edelbrock – Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701 (Part No.2701)

Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701

from

$227.99
“Edelbrock part No. 2701 Performer EPS intake manifold is designed for 1986 and earlier 262-400 cubic-inch Chevys. Edelbrock’s Patented Dual-plane, low-rise design with a 180-degree firing order greatly improves torque over a wide rpm range for excellent throttle response. With that the Edelbrock Performer EPS intake manifold has a runner design that’s “”tuned”” for peak torque at 3500 rpm on a 350-inch engine making it ideal for power from off-idle to 5500 rpm. Dyno tests showed gains of 5 hp and 9 ft-lbs. of torque over the Edelbrock Performer manifold No. 2101 on a 350 Chevy. From 3000 to 4500 rpm, the power increases averaged 5+ ft-lbs. of torque for more performance where you need it most. PLEASE NOTE: Will not fit under stock Corvette hood!”
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set, 6091 (Part No.6091)

Mr. Gasket Intake Manifold Bolt Set, 6091

from

$39.29
These special Grade 8 intake manifold bolts feature a 12-point smaller-than-standard head and flange, and include special extra thick flat washers for optimum clamping pressures. They’re ideal for use where space is minimal, typical on larger runner race manifolds. These bolts and washers are bright zinc plated for protection and good looks.
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set – Hex Head, 955G (Part No.955G)

Mr. Gasket Intake Manifold Bolt Set - Hex Head, 955G

from

$18.79
These grade 5 socket head bolts are zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8-16 x 1 inch bolts & washers.
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Edelbrock – Edelbrock Performer RPM Small Block Chevy AIR-Gap Intake Manifold, 7501 (Part No.7501)

Edelbrock Performer RPM Small Block Chevy AIR-Gap Intake Manifold, 7501

from

$374.99
Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM. Dual-plane high-rise intake. For square bore carburetors only. For street and high performance use. Available in cast, polished or endurashine finish.
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Edelbrock – Edelbrock Performer Small-Block Chevy Intake Manifold for Street Performance, 3701 (Part No.3701)

Edelbrock Performer Small-Block Chevy Intake Manifold for Street Performance, 3701

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$359.99
Edelbrock Performer Small-Block Chevy Intake Manifold for Street Performance, 3701.
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Weiand – Weiand Action +Plus Intake Manifold, 8120 (Part No.8120)

Weiand Action +Plus Intake Manifold, 8120

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$254.99
New Everbright(TM) Manifold coating now available on the most popular Weiand and Holley intakes uses proprietary vacuum metalizing technology combined with a protective clear powdercoat to provide long lasting, virtually maintenance free polished looks.
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Edelbrock – Edelbrock RPM Air-Gap Big Block Chevy 2-O Intake Manifold, 7561 (Part No.7561)

Edelbrock RPM Air-Gap Big Block Chevy 2-O Intake Manifold, 7561

from

$460.99
Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM street-driven power. Dual-plane high-rise intake with 180 degree firing order. Produces incredible top-end horsepower. Retains good throttle response and acceleration. Larger plenum and runners maximize other upgrades. Edelbrock total power package maximizes gains. Available in cast, polished or endurashine finish.
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Edelbrock – Edelbrock C-26 Small Block Chevy Dual-Quad Intake Manifold, 5425 (Part No.5425)

Edelbrock C-26 Small Block Chevy Dual-Quad Intake Manifold, 5425

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$530.99
Edelbrock C-26 Small Block Chevy Dual-Quad Intake Manifold, 5425.
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Edelbrock – Edelbrock Street Tunnel Ram Big Block Chevy 2-O Intake Manifold, 7115 (Part No.7115)

Edelbrock Street Tunnel Ram Big Block Chevy 2-O Intake Manifold, 7115

from

$895.99
For 3500 to 7500 PRM. Use where low-end torque is not a prime factor. Great for engines with slightly modified heads. HEI ignition will not clear manifold. Street machines, street rods, pro-street and marine.
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Weiand – Weiand Stealth Ram Intake Manifold, 7540 (Part No.7540)

Weiand Stealth Ram Intake Manifold, 7540

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$849.99
Weiand Stealth Ram Intake Manifold, 7540.
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Edelbrock – Edelbrock Pro-Flo XT Small Block Chevy EFI Black Intake Manifold, 71373 (Part No.71373)

Edelbrock Pro-Flo XT Small Block Chevy EFI Black Intake Manifold, 71373

from

$779.99
Edelbrock Pro-Flo XT Small Block Chevy EFI Black Intake Manifold, 71373.
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Edelbrock – Edelbrock Street Tunnel Ram Small Block Chevy Intake Manifold, 7110 (Part No.7110)

Edelbrock Street Tunnel Ram Small Block Chevy Intake Manifold, 7110

from

$663.99
For 3500 to 7500 PRM. Use where low-end torque is not a prime factor. Great for engines with slightly modified heads. HEI ignition will not clear manifold. Street machines, street rods, pro-street and marine.
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Edelbrock – Edelbrock Performer RPM Small Block Chevy Polished Intake Manifold, 71011 (Part No.71011)

Edelbrock Performer RPM Small Block Chevy Polished Intake Manifold, 71011

from

$629.99
Edelbrock Performer RPM Small Block Chevy Polished Intake Manifold, 71011.
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Edelbrock – Edelbrock RPM Air-Gap Dual Quad Big Block Chevy Intake Manifold, 7520 (Part No.7520)

Edelbrock RPM Air-Gap Dual Quad Big Block Chevy Intake Manifold, 7520

from

$595.99
Air gap cooler and denser mixture for more power. Street and high performance compatible. Available in cast, polished and endurashine finish.
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Edelbrock – Edelbrock Performer 454 T.B.I. Intake Manifold Big-Block Chevy, 3764 (Part No.3764)

Edelbrock Performer 454 T.B.I. Intake Manifold Big-Block Chevy, 3764

from

$562.99
Edelbrock part #3764 Performer 454 T.B.I. intake manifold is designed for street 454 c.i.d. Chevy V8’s. Add our Performer High-Compression heads #60499 for even greater power gains. Features EGR in stock location. Manifolds will not fit 1991-95 vehicles.
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Edelbrock – Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011 (Part No.27011)

Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011

from

$552.99
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, Polished Finish, 27011.
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Edelbrock – Edelbrock C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern, 5419 (Part No.5419)

Edelbrock C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern, 5419

from

$545.99
Edelbrock C-357-B Triple-Deuce Manifold for S/B Chevy 4-Bolt Carb Pattern, 5419.
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Edelbrock – Edelbrock C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys, 5418 (Part No.5418)

Edelbrock C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys, 5418

from

$545.99
Edelbrock C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys, 5418.
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Edelbrock – Edelbrock Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy, Black Finish, 21613 (Part No.21613)

Edelbrock Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy, Black Finish, 21613

from

$519.99
Edelbrock Performer 2-O Intake Manifold for 1965-90 Big-Block Chevy, Black Finish, 21613.
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Edelbrock – Edelbrock Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish, 27033 (Part No.27033)

Edelbrock Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish, 27033

from

$479.99
Edelbrock Performer EPS Manifold w/Oil Fill Tube for Small-Block Chevy, Black Finish, 27033.
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Weiand – Weiand Stealth Intake Manifold, 8019 (Part No.8019)

Weiand Stealth Intake Manifold, 8019

from

$456.99
Weiand Stealth Intake Manifold, 8019.
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Weiand – Weiand Stealth Intake Manifold, 8018 (Part No.8018)

Weiand Stealth Intake Manifold, 8018

from

$449.99
Weiand Stealth Intake Manifold, 8018.
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Weiand – Weiand Stealth Intake Manifold, 8150P (Part No.8150P)

Weiand Stealth Intake Manifold, 8150P

from

$429.99
Weiand Stealth Intake Manifold, 8150P.
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Holley – Holley Intake Manifold, 300-4 (Part No.300-4)

Holley Intake Manifold, 300-4

from

$425.99
Holley Intake Manifolds feature a cast aluminum construction and have a long tradition of being one of the best products on the market. Review the information below for Holley intake specifications.
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Edelbrock – Edelbrock Performer Intake Manifold Small-Block Chevy, 3706 (Part No.3706)

Edelbrock Performer Intake Manifold Small-Block Chevy, 3706

from

$414.99
Edelbrock part #3706 Performer EGR intake manifold is designed for street 262-400 c.i.d. Chevy V8’s that have heads with canted center bolt holes, 1987-1995. This intake manifold accepts late-model water neck, air-conditioning, alternator, H.E.I. and have rear water crossovers. For 1987-95 stock aluminum heads use #2101. Will not fit Chevrolet Bowtie or LT1 heads.
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Mr. Gasket – Mr. Gasket Intake Manifold Bolt Set – Chrome – 12-Point, 5003 (Part No.5003)

Mr. Gasket Intake Manifold Bolt Set - Chrome - 12-Point, 5003

from

$92.89
Finish your custom engine job with these show quality grade 5 chromed 12-point bolts, includes AN washers which have no exposed shoulder for a professional appearance. Includes (12) 3/8-16 x 1 inch bolts with (12) 3/8 inch AN washers.
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Top-Rated Performance Engine Brands For Your 1975 GMC G25

When it comes to finding the perfect Performance Engine for your 1975 GMC G25, 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 Performance Engine brands including Edelbrock, FEL-PRO Performance, and Competition Cams, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $39.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1975 GMC G25, providing peace of mind with parts that meet or exceed OEM standards.

Popular Edelbrock 1975 GMC G25 Performance Engines

If you’re looking for a top-quality Performance Engine for your 1975 GMC G25, Advance Auto Parts has exactly what you need with our selection of Edelbrock Performance Engines. We have 3 Edelbrock Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $39.99 and an average cost of $107.66, you’ll find the perfect Performance Engine for your needs and budget. Edelbrock Performance Engines for the 1975 GMC G25 come highly rated, with over 9 customer reviews and an impressive average rating of 4.4 stars. Choosing a Edelbrock Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Edelbrock Intake Manifold Gasket, 7215
from $54.99
(1)
Edelbrock Intake Manifold Gasket, 7215
“Buy American”
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701
from $227.99
(7)
Edelbrock Performer EPS Intake Manifold for 1955-86 Small-Block Chevy, 2701
“Removed a Weiand Stealth manifold and replaced with the Edelbrock, while doing a dyno test – increased HP & Torque on a modified 350, very good for st”
Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7802
from $39.99
(1)
Edelbrock Performer-Link Adjustable True-Roller Timing Chain Set, 7802
“When you search for ls timing chain advance pays to be top ad that pops up. Says in the headline true-roller. Yet the first question is why isn’t it s”

Top-Quality FEL-PRO Performance 1975 GMC G25 Performance Engines

For those in search of a high-quality Performance Engine for their 1975 GMC G25, Advance Auto Parts offers a great selection of FEL-PRO Performance Performance Engines. With 3 FEL-PRO Performance Performance Engines in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Performance Engines start at just $42.49, with an average price of $50.82, giving you a range of options to suit your budget. Backed by over 3 customer ratings and an average rating of 4.2 stars, FEL-PRO Performance Performance Engines provide both reliability and excellent performance. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037
from $64.99
(1)
FEL-PRO Performance Stainless steel core laminate Engine Cylinder Head Gasket, 1037
“Have not had a chance to install, but have used FelPro in the past with good results.”

FAQs for 1975 GMC G25 Performance Engines

What are the best-selling Performance Engines for 1975 GMC G25s?

Out of 189 Performance Engines that fit 1975 GMC G25s, the following parts are the top sellers:

What’s the price range for 1975 GMC G25 Performance Engines?

The prices of Performance Engines for the 1975 GMC G25 range from $8.99 up to $1,623.99 for the most premium parts.

What is the average price of a Performance Engine for a 1975 GMC G25?

The average price for Performance Engines for the 1975 GMC G25 is $342.25. Keep in mind the variety of part types within our Performance Engine category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Engines for other GMC G25 model years?

Yes, we carry Performance Engines for 3 model years of GMC G25s between 1968 and 1978. The following model years are the most popular for Performance Engine purchases: 1978, 1977, 1976, and 1968.

What are the cheapest Performance Engines for my 1975 GMC G25?

The cheapest 1975 GMC G25 Performance Engines we carry are:

Does Advance Auto Parts sell Performance Engines for any other 1975 GMC models?

Yes. We stock Performance Engines for 11 other popular 1975 GMC models. Some of the most popular are 1975 Jimmy Performance Engines, 1975 K25 Performance Engines, 1975 K15 Performance Engines, 1975 C25 Performance Engines, and 1975 C15 Performance Engines.

What are the top-rated Performance Engines that fit the 1975 GMC G25?

Based on 652 reviews by customers, our 1975 GMC G25 Performance Engines have an average customer rating of 4.6 stars. These are the highest-rated categories of Performance Engines for the 1975 GMC G25 and their top-rated products:

What types of Performance Engines do you sell for my 1975 GMC G25?

As of 8/2/26, these are some of the most in-demand types of Performance Engines for a 1975 GMC G25:

Can I get help with 1975 GMC G25 Performance Engine orders?

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

What is your return policy for GMC G25 Performance Engines?

Advance Auto Parts keeps returns simple. For new GMC G25 Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.