1975 GMC P25 Performance Engines

Keep Your 1975 GMC P25 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 P25 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Engine Oil Pan Gaskets, Performance Engine Cylinder Head Gaskets, and Performance Engine Valve Cover Gasket Sets. 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 B & M. For example, FEL-PRO Performance Performance Engines start at just $31.99 with an average 4.2 star rating. Competition Cams and B & M offer similar pricing and quality, backed by strong customer feedback. With over 20 reviews and a solid 5 star average, you can shop with confidence knowing other GMC P25 owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1975 GMC P25 Performance Engine at Advance Auto Parts is around $437.12, with a range that starts at $21.99 and goes up to $1,201.99. With 37 options in stock from 5 trusted brands, finding the right fit is easy. Popular picks like Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts, Cylinder Head Gasket: Steel Core Composite, Without Head Bolts, and Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set start at just $26.99 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 P25 in peak condition, inside and out.

Essential 1975 GMC P25 Performance Engines

Mr. Gasket – Engine Dress-Up Kit (Part No.9834BP)

Engine Dress-Up Kit

from

$134.99
Includes: 2 short flat black valve covers 2 valve cover gaskets 1 flat black push-on breather 1 flat black dipstick & tube 1 flat black timing chain cover 1 flat black timing tab 1 rubber grommet for valve cover PCV hole 1 breather grommet

Product Features:
  • Ideal Starter Kit
  • Enhances Appearance
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B & M – Holeshot 3600 (Part No.20425)

Holeshot 3600

from

$949.99
HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: HoleShot 3600 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages and benefits in vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low end power and torque. The high stall converter allows the engine to launch the car at higher rpm where more torque is available. The Holeshot is generally a very good choice for the typical street machine that is looking for better launch capability and more strength. Street rods with modified engines will also benefit from a Holeshot converter. If your vehicle is equipped with a plate type nitrous system, you will need a Nitrous Holeshot!! 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. Furnace brazed impeller. New precision steel alloy pump drive tube. New heavy duty needle bearing between stator and impeller (not a thrust washer). Needle bearing between stator and turbine. Furnace brazed turbine. Dual pattern drive lugs on some GM Holeshots. New turbine hub. New springs and rollers in stator.

Product Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
  • Dual Pattern Drive Lugs
  • New Turbine Hub
  • New Springs/Rollers In Stator
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B & M – Performance Torque Converter for GM TH400, 350, & 375 Transmissions (Part No.20400)

Performance Torque Converter for GM TH400, 350, & 375 Transmissions

from

$329.99
Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
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Competition Cams – Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-234-2)

Xtreme Energy 212/218 Hydraulic Flat Cam and Lifter Kit

from

$305.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Xtreme Energy: Strong torque thru low end and mid-range, good idle.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Xtreme Energy: Strong torque thru low end and mid-range, good idle.
  • 256/268 Advertised Duration, 212/218 Duration @ .050″, .447″/.454″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – High Energy 206/206 Hydraulic Flat Cam K-Kit (Part No.K12-205-2)

High Energy 206/206 Hydraulic Flat Cam K-Kit

from

$1201.99
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.

Product Features:
  • Good blend of efficiency and performance.
  • Perfect choice for performance street rebuilds.
  • Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$44.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1025)

Performance Cylinder Head Gasket

from

$74.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Engine Timing Cover Gasket (Part No.2335)

Engine Timing Cover Gasket

from

$21.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Steel core gasket construction
  • Exclusive design permits significantly faster gasket installation while eliminating potential sealing leak paths.
  • Not intended for use in emission controlled vehicles.
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Mr. Gasket – Water Neck (Part No.9142G)

Water Neck

from

$74.99
Chrome water neck with a swivel top allows you to place your coolant hose where you want it to be, not just where the neck allows. Precision die cast for better fitment, 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.

Product Features:
  • Chrome plated Aluminum
  • O-Ring Style To Prevent Leaks (o-ring included)
  • Swivels for Hard to Fit Applications
  • Comes With Allen Head Bolts
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Competition Cams – Magnum/Drag Race 253/253 Hydraulic Flat Cam (Part No.12-214-4)

Magnum/Drag Race 253/253 Hydraulic Flat Cam

from

$288.99
HYDRAULIC – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.

Product Features:
  • HYDRAULIC – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.
  • 305/305 Advertised Duration, 253/253 Duration @ .050″, .525″/.525″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Competition Cams – Xtreme Energy 230/236 Hydraulic Flat Cam (Part No.12-246-3)

Xtreme Energy 230/236 Hydraulic Flat Cam

from

$258.99
HYDRAULIC – Xtreme Energy: Very strong mid-range torque and throttle response, 2200+ stall.

Product Features:
  • HYDRAULIC – Xtreme Energy: Very strong mid-range torque and throttle response, 2200+ stall.
  • 274/286 Advertised Duration, 230/236 Duration @ .050″, .490″/.490″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam (Part No.12-601-4)

Mutha' Thumpr 235/249 Hydraulic Flat Cam

from

$350.99
HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.

Product Features:
  • HYDRAULIC – Mutha’ Thumpr: High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
  • 287/305 Advertised Duration, 235/249 Duration @ .050″, .489″/.476″ Lift, 107 Lobe Separation
  • Valve spring upgrade required
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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2912)

Engine Crankshaft Seal Kit

from

$37.99
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.

Product Features:
  • Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longevity.
  • Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
  • Not intended for use in emission controlled vehicles.
  • Not intended for use in emission controlled vehicles.
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Edelbrock – C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys (Part No.5418)

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

from

$540.99
Edelbrock part #5418 C-357-B Triple-Deuce intake manifold is designed for 1955-86 262-400 c.i.d. small-block Chevys, this manifold has a balanced 180-degree firing order port runner arrangement. It contains an exhaust gas heat crossover and offers excelle

Product Features:
  • Idle-5500 RPM Range
  • Dual Plane Type 6-Pack Style Flange
  • 3.77 in. Front Height, 4.35 in. Center Height, 4.88 in. Rear Height
  • Satin Finish
  • Non-EGR
See More

FEL-PRO Performance – Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set (Part No.1803)

Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set

from

$26.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1819)

PERFORMANCE OIL PAN GASKET SET

from

$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1603)

Engine Valve Cover Gasket Set

from

$31.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – PERFORMANCE VALVE COVER GASKET SET (Part No.1602)

PERFORMANCE VALVE COVER GASKET SET

from

$23.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Die cut silicone rubber gaskets conform to out-of-flat covers
  • Great for on-again/off-again situations
  • Not intended for use in emission controlled vehicles.
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1640)

Engine Valve Cover Gasket Set

from

$22.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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Most Popular Performance Engine Oil Pan Gaskets for 1975 GMC P25s

Enhance your 1975 GMC P25 with one of the 2 Performance Engine Oil Pan Gaskets we have in stock, starting at just $26.99.

FEL-PRO Performance – Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set (Part No.1803)

Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set

from

$26.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1819)

PERFORMANCE OIL PAN GASKET SET

from

$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • Not intended for use in emission controlled vehicles.
See More

Best-Selling 1975 GMC P25 Performance Engine Cylinder Head Gaskets

Upgrade your P25 with one of our 5 best-selling Performance Engine Cylinder Head Gaskets, earning an average 5 stars rating across 2 reviews.

FEL-PRO Performance – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.1003)

Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts

from

$42.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1004)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$44.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1010)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

from

$51.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
See More

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1025)

Performance Cylinder Head Gasket

from

$74.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.

Product Features:
  • Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
  • Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
  • Raises combustion sealing force to roughly three times that of standard head gaskets.
  • Steel wire rings for the greatest combustion seal strength.
  • Not intended for use in emission controlled vehicles.
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Mr. Gasket – Mls Head Gasket (Part No.3130G)

Mls Head Gasket

from

$111.99
Our unique Multi-Layered steel head gasket embossment formation process optimizes the embossment radius, reduces stress points, enhances gasket conformability, and provides uniform clamp load distribution. This all results in superior surface contact between block and cylinder head. All head gasket layers/spacers go through an additional process to significantly reduce forming induced stress. Advantages are reduced brittleness in material, increased flexibility and deformation retention. This stabilizes the gasket, resulting in reduced cylinder bore distortion and improved combustion seal fro the extreme cylinder pressures found in high compression, supercharged and turbocharged applications. A proprietary polymer coating ensures the micro-seal of engine coolant and oil fluids.brbrA typical MLS head gasket requires a smoother (30Ra) surface finish than composite head gaskets. Mr. Gasket’s proprietary polymer coating will seal a surface finish twice as rough (60Ra) as a typical MLS head gasket. For high performance street, drag race and oval track use.

Product Features:
  • Gasket bore – 4.060″ Thickness – .040″
  • Manufactured from 3-layer premium grade stainless steel and state of the art laser cutting
  • Optimized sealing embossments seals extreme cylinder pressure
  • Provides excellent stability and reduces cylinder bore distortion.
  • Proprietary polymer coating ensures the micro seal of engine coolant and oil fluids.
  • Ideal for supercharged, turbocharged, nitrous oxide and extreme compression ratio engines
  • For high-performance street, drag race and oval track use
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Top-Quality Performance Engine Valve Cover Gasket Sets for 1975 GMC P25s

Choose a high-quality OEM or aftermarket Performance Engine Valve Cover Gasket Set for GMC P25s and enjoy top-notch performance from $22.99.

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1603)

Engine Valve Cover Gasket Set

from

$31.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – PERFORMANCE VALVE COVER GASKET SET (Part No.1602)

PERFORMANCE VALVE COVER GASKET SET

from

$23.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Die cut silicone rubber gaskets conform to out-of-flat covers
  • Great for on-again/off-again situations
  • Not intended for use in emission controlled vehicles.
See More

FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1640)

Engine Valve Cover Gasket Set

from

$22.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
See More

Our Top Pick for a 1975 GMC P25 Performance Water Outlet

Invest in a durable Performance Water Outlet for your 1975 GMC, knowing you’re getting trusted brands and expert craftsmanship.

Mr. Gasket – Water Neck (Part No.9142G)

Water Neck

from

$74.99
Chrome water neck with a swivel top allows you to place your coolant hose where you want it to be, not just where the neck allows. Precision die cast for better fitment, 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.

Product Features:
  • Chrome plated Aluminum
  • O-Ring Style To Prevent Leaks (o-ring included)
  • Swivels for Hard to Fit Applications
  • Comes With Allen Head Bolts
See More

Our Performance Intake Manifolds for 1975 GMC P25s

Make a smart move for your 1975 GMC P25 with our Performance Intake Manifold for $540.99.

Edelbrock – C-357-B Triple-Deuce Intake Manifold for 1955-86 262-400 c.i.d. SB Chevys (Part No.5418)

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

from

$540.99
Edelbrock part #5418 C-357-B Triple-Deuce intake manifold is designed for 1955-86 262-400 c.i.d. small-block Chevys, this manifold has a balanced 180-degree firing order port runner arrangement. It contains an exhaust gas heat crossover and offers excelle

Product Features:
  • Idle-5500 RPM Range
  • Dual Plane Type 6-Pack Style Flange
  • 3.77 in. Front Height, 4.35 in. Center Height, 4.88 in. Rear Height
  • Satin Finish
  • Non-EGR
See More

Top-Rated Performance Engine Brands For Your 1975 GMC P25

When it comes to finding the perfect Performance Engine for your 1975 GMC P25, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 5 trusted brands. We carry the most popular Performance Engine brands including FEL-PRO Performance, Competition Cams, and B & M, and more, all known for their exceptional customer ratings (average brand rating of 4.2 stars) and competitive prices, as low as $31.99. Purchasing a Performance Engine from us here at Advance Auto Parts is a smart move for both you and your 1975 GMC P25, providing peace of mind with parts that meet or exceed OEM standards.

Popular FEL-PRO Performance 1975 GMC P25 Performance Engines

If you’re looking for a top-quality Performance Engine for your 1975 GMC P25, Advance Auto Parts has exactly what you need with our selection of FEL-PRO Performance Performance Engines. We have 3 FEL-PRO Performance Performance Engines in stock for this fitment, all known for their durability and precision fit. With prices starting at just $31.99 and an average cost of $39.82, you’ll find the perfect Performance Engine for your needs and budget. FEL-PRO Performance Performance Engines for the 1975 GMC P25 come highly rated, with over 3 customer reviews and an impressive average rating of 4.2 stars. Choosing a FEL-PRO Performance Performance Engine from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $42.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
“Real good products”
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $44.99
(1)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
“Racing application”
Engine Valve Cover Gasket Set
from $31.99
(1)
Engine Valve Cover Gasket Set
“Perfect fit”

Top-Quality Competition Cams 1975 GMC P25 Performance Engines

For those in search of a high-quality Performance Engine for their 1975 GMC P25, Advance Auto Parts offers a great selection of Competition Cams Performance Engines. With 2 Competition Cams 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 $898.99, with an average price of $906.99, giving you a range of options to suit your budget. Backed by over 14 customer ratings and an average rating of 4.1 stars, Competition Cams Performance Engines provide both reliability and excellent performance. Choosing a Competition Cams Performance Engine from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit
from $898.99
(1)
High Energy/Marine 218/218 Hydraulic Flat Cam/Lifter Kit
“nearly identical match for the original part”
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
from $914.99
(13)
Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
“Worked prefect. Gave me the Hi speed blower back”

FAQs for 1975 GMC P25 Performance Engines

What are the best-selling Performance Engines for 1975 GMC P25s?

Out of 37 Performance Engines that fit 1975 GMC P25s, the following parts are the top sellers:

What’s the price range for 1975 GMC P25 Performance Engines?

The prices of Performance Engines for the 1975 GMC P25 range from $21.99 up to $1,201.99 for the most premium parts.

What is the average price of a Performance Engine for a 1975 GMC P25?

The average price for Performance Engines for the 1975 GMC P25 is $437.12. 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 P25 model years?

Yes, we carry Performance Engines for 2 model years of GMC P25s between 1976 and 1978. The following model years are the most popular for Performance Engine purchases: 1978, 1977, and 1976.

What are the cheapest Performance Engines for my 1975 GMC P25?

The cheapest 1975 GMC P25 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 G25 Performance Engines, and 1975 C25 Performance Engines.

What types of Performance Engines do you sell for my 1975 GMC P25?

As of 11/2/25, these are some of the most in-demand types of Performance Engines for a 1975 GMC P25:

Can I get help with 1975 GMC P25 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 P25 Performance Engines?

Advance Auto Parts keeps returns simple. For new GMC P25 Performance Engines and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.