1975 GMC C25 Performance Engines

Essential 1975 GMC C25 Performance Engines

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chevrolet (Part No.7361)

Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chevrolet

from

$128.99
Product Features:
  • Provides excellent sealing and conformability
  • Releases+N747 clean without sticking, if the engine needs to be disassembled
  • Perfect companion for Edelbrock cylinder heads and intake manifolds
  • Does not include end seals
  • Use of a silicone sealant in place of end seal is recommended
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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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Weiand – Stealth Ram; Intake Manifold (Part No.7540P)

Stealth Ram; Intake Manifold

from

$1048.99


Product Features:
  • Great For Street Machines/Street Rods/Muscle Cars
  • Two Piece Design
  • Individual D-Shaped Runners
  • Optimized For Broad Power Range/Large Plenum Area
  • Can Be Used For Blow-Through Superchargers
  • Fully CNC Machined For A Perfect Fit
  • No Exhaust Crossover
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FEL-PRO Performance – PERFORMANCE REAR MAIN SEAL SET (Part No.2904)

PERFORMANCE REAR MAIN SEAL SET

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$16.29
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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FEL-PRO Performance – PERFORMANCE OIL PAN GASKET SET (Part No.1819)

PERFORMANCE OIL PAN GASKET SET

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$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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Mr. Gasket – Throttle Cable Bracket (Part No.9885)

Throttle Cable Bracket

from

$14.99
The throttle cable bracket is designed for small block Chevy engines thru 1979 and is to be used in conjunction with the kick down cable Pn9886 for the Turbo 350 transmission. The throttle cable bracket mounts on the intake manifold and will hold cables with round or square mounts. It has a 2 inch adjustable range and is finished off in a beautiful chrome plating.

Product Features:
  • 2 in. adjustable range
  • Includes necessary hardware
  • Chrome plated
  • Individually packaged
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Spectre – Engine Dress Steel Up Kit (Part No.5404)

Engine Dress Steel Up Kit

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$139.99
Spectre’s chrome engine kits are designed to give the top of your engine an amazing look in one neat package. This chrome engine kit includes chrome valve covers, chrome valve cover bolts, a chrome dip stick and a chrome plated timing cover.

Product Features:
  • Chrome valve covers
  • Chrome valve cover bolts
  • Chrome dip stick and tube
  • Chrome timing cover
  • Dresses up the engine
  • Triple plated chrome
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Mr. Gasket – Precision Timing Tape (Part No.1588)

Precision Timing Tape

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$18.99
Avoid trouble with this precision timing tape. Use it for accurate timing, setting valve lash or when degreeing the harmonic balancer.

Product Features:
  • Accurate in calibration
  • For hi-performance engines
  • Increased performance
  • Set valve lash at proper time
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Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7810)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$74.99


Product Features:
  • Solid Bushing Chain Resists Stretching
  • For Use with Stock or Edelbrock Camshafts
  • Stressproof Steel Crank Gears
  • 3 Keyway Setting Points To Ensure Accurate Timing
  • True Bearing Surface Rolls with the Sprockets
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Edelbrock – Water Pump for Small-Block Chevy in Satin Finish (Long) (Part No.8811)

Water Pump for Small-Block Chevy in Satin Finish (Long)

from

$307.99
Maximum cooling for street and racing engines. Internal passages are balanced for maximum flow. Impeller is larger than others for maximum pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of block. Only flows in one direction for optimum efficiency. In the early days of the automotive performance industry, you either ran what was available, or you fabricated something you thought met your needs. Such needs were the building blocks of this industry, and it was through the efforts of many that we have the automotive aftermarket, but it was through the work of one name in particular to which many in the industry owe a great debt, and that name is Edelbrock.

Product Features:
  • Maximum Cooling for Street and Racing Engines
  • Internal Passages Are Balanced for Maximum Flow
  • Impeller is Larger than Others For Max Pressure
  • Impeller Vanes Dramatically Increase Flow Rates
  • Equal Distribution to Both Sides of Block
  • Only Flows in One-Direction for Optimum Efficiency
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Mr. Gasket – Water Outlet Gasket (Part No.738G)

Water Outlet Gasket

from

$30.99
Manufactured from a blend of nitrile rubber and fiber for excellent sealing and durability. Precision die cut for application.

Product Features:
  • Edge molded rubber water outlet gasket is reusable
  • Requires no gasket sealer
  • Solid aluminum carrier for strength/rigidity
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Mr. Gasket – Valve Cover Gasket Set (Part No.585G)

Valve Cover Gasket Set

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$25.99
Thick, molded rubber with steel carrier. Manufactured from high-density cork and rubber blend gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage. Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Available in standard or extra thick to provide additional valve train to cover clearance. For OE replacement, high performance street, drag race and oval track.

Product Features:
  • Features nitrile rubber material for long life
  • Molded rubber gaskets are reusable
  • Ideal for engine requiring valve lash maintenance
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Spectre – Water Neck; Chevy 90 Degree (Part No.4933)

Water Neck; Chevy 90 Degree

from

$50.99
Spectre’s Chevrolet water neck fits Chevy V8 engines and features a 90 degree neck with a 360 degree swivel design for a custom look and fit. This water neck has been designed around the OEM specifications, has a height of 2-7/8 inches and has a polished aluminum finish for a lasting look that fits great. This water neck includes the allen bolts and sealing O-ring.

Product Features:
  • Fits Chevy V8 engines
  • 90 degree neck with a 360 degree swivel design
  • 2-7/8 inch height
  • Includes sealing O-ring and allen bolts
  • Polished aluminum finish
  • Easy to install
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Mr. Gasket – Ultra Seal; Cylinder Head Bolts (Part No.941G)

Ultra Seal; Cylinder Head Bolts

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$64.99
These grade 8 alloy, longer length bolts allow increased torque and clamping.

Product Features:
  • Cylinder head bolts
  • Longer-than-stock
  • High quality grade 8 alloy
  • Increase torque settings
  • Higher clamp loads on gasket
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Mr. Gasket – TIMING COVER SEAL (Part No.17)

TIMING COVER SEAL

from

$25.99
TIMING COVER SEAL

Mr. Gasket – Ultra Seal; Competition Screw-In Rocker Arm Studs (Part No.1074)

Ultra Seal; Competition Screw-In Rocker Arm Studs

from

$73.99
This stud uses heat treated grade 8 alloy steel. The enlarged radius base provides extra strength for a more durable stable shank. Black plated finish. Fits Chevy small block and Ford small block.

Product Features:
  • Heat-treated
  • Grade 8 alloy steel
  • Ex strength enlarged radius
  • More durable/stable shank
  • Prevents stud flexing
  • Black plated finish
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Spectre – Aluminum Flywheel Dust Shield (Part No.5462)

Aluminum Flywheel Dust Shield

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$81.99
Spectre’s transmission cover for Chevy and GM TH350 transmissions is a great looking cover to help protect your flex plate while on the road. This cover is designed to fit GM and Chevy engines that have the starter on the passenger side. It has a 3-7/8 inch start slot to accommodate the majority of starters. This cover will not work on Pontiac or Oldsmobile engines.

Product Features:
  • Polished aluminum
  • For GM TH350 transmissions
  • For Chevy and GM engines with the starter on the passenger side
  • Has a 3-7/8 inch starter slot
  • Does not fit Pontiac or Oldsmobile engines
  • Easy to install with no special tools or skills required
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B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)

Torque Converter, Nitrous Holeshot 3600

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$563.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:
  • 3400-3800 RPM
  • Small And Big Blocks
  • Serious Performance
  • Furnace Brazed
  • Fully Balanced
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Mr. Gasket – Special Cam Bolt (Part No.944G)

Special Cam Bolt

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$12.99
Grade 8, single bolt. Black plated finish. The washers are designed to secure the Mr. Gasket cam button pn1180, pn1181, and pn1183 or can be used as stock replacements.

Product Features:
  • Specialty and drive train fastener
  • Special cam bolts
  • Black plated finish
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Mr. Gasket – Intake Manifold Bolts (Part No.957G)

Intake Manifold Bolts

from

$21.99
Choose from grade 5 hex or socket head intake bolts or grade 8 bolts with twelve point smaller-than-standard head and flange, ideal for where space is minimal. Bolts and washers are bright zinc plated for protection and appearance.

Product Features:
  • Grade 8 material
  • Extra thick flat washers
  • Ideal for minimal space
  • 12-pt head and flange
  • Zinc plated for protection
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Mr. Gasket – Ultra Seal; Intake Gasket (Part No.5817)

Ultra Seal; Intake Gasket

from

$40.99
Nitrile rubber and fiber. Will not crack or split and resists wicking. Withstands 600 plus degree temperatures. Silicone bead around the port creates a tight leak proof seal.

Product Features:
  • Nitrile rubber and fiber
  • Will not crack or split
  • Resists wicking
  • Withstands 600+ temps
  • Silicone bead around port
  • Creates tight leak proof seal
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Mr. Gasket – GSKT INTAKE (Part No.5812)

GSKT INTAKE

from

$46.99
GSKT INTAKE

Edelbrock – Pushrod Set for S/B Chevy (Part No.9629)

Pushrod Set for S/B Chevy

from

$187.99


Product Features:
  • Case-Hardened Tubing
  • Surface Hardening
  • Welded Ends
  • 0.3125 in. Diameter
  • Use with or without Hardened Steel Guideplates
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Edelbrock – Sure Seat; Valve Spring (Part No.5902)

Sure Seat; Valve Spring

from

$51.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • For Use With Cast Iron Heads
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Use with Original Equipment Heads Only
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Edelbrock – Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 (Part No.5802)

Sure Seat Valve Springs for Chevy 262-400 V8 1957-95

from

$60.99
Springs made of highest quality spring wire. Springs precision wound to close tolerances. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:
  • For Use With Cast Iron Heads
  • Springs Made of Highest Quality Spring Wire
  • Springs Precision Wound To Close Tolerances
  • Use with Original Equipment Heads Only
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1975 GMC C25 Performance Engines

Maybe you’re in the middle of a full rebuild of that 1975 GMC C25. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 100 different Performance Engines in our inventory ranging from $12.99 to $1,268.99. That means you can find the exact parts or products you need to keep that 1975 GMC C25 running smoothly.

Performance Engines are only as good as their brand. We stock 6 different brands to make sure you have plenty of trusted parts to choose from for your 1975 GMC C25. Mr. Gasket, FEL-PRO Performance, and Edelbrock 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 Performance Engines for your 1975 GMC C25, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 84 reviews in this category, some of the top rated parts include Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish with 5.0 stars and Action Plus Water Pumps with 3.7 stars.

So if you’re in the market for aftermarket Performance Engines to keep your 1975 GMC C25 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!

Performance Engines Brands To Make Your 1975 GMC C25 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1975 GMC C25 demands trusted brand parts and products to keep it running. Many trusted brands of Performance Engines make up Advance Auto Parts’ inventory, and all are ready to help make your C25 the best it can be. Be sure to browse some of our top Performance Engines brands and parts.

Popular FEL-PRO Performance Performance Engines

We carry FEL-PRO Performance parts in our stock across Performance Engine Cylinder Head Gaskets categories, plus more. For a 1975 GMC C25, our most popular FEL-PRO Performance Performance Engines include:
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $62.99
(1)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $52.99
(1)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $39.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets

Top 1975 GMC C25 Performance Engines from Mr. Gasket

Mr. Gasket products are another trusted brand when it comes to Performance Engines for your 1975 GMC C25. Popular Mr. Gasket parts include:
Ultra Seal; Valve Cover Gasket Set
from $25.99
(7)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
Water Outlet Gasket
from $30.99
(6)
Water Outlet Gasket
Performance Water Outlet Gaskets
Intake Manifold Bolts
from $29.99
(5)
Intake Manifold Bolts
Performance Intake Manifolds

FAQs for 1975 GMC C25 Performance Engines

What are the most purchased Performance Engines for the 1975 GMC C25?

Out of 100 Performance Engines for the 1975 GMC C25, the most popular in our inventory are:
Lower Intake Manifold Gasket Set: 9 Piece Set
from $27.49
This product is not rated
Lower Intake Manifold Gasket Set: 9 Piece Set
Performance Engine Intake Manifold Gaskets
Ultra Seal; Valve Cover Gasket Set
from $35.99
(2)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
Engine Crankshaft Seal Kit
from $21.49
(2)
Engine Crankshaft Seal Kit
Performance Engine Main Bearing Gasket Sets

What are the top-rated 1975 GMC C25 Performance Engines?

Top-rated Performance Engines for your 1975 GMC C25 based on customer reviews/ratings are:
Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish
from $257.99
(3)
Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish
“Get the matching carb, increased HP by 50 points”
Action Plus Water Pumps
from $215.99
(3)
Action Plus Water Pumps
“I bought this item for my 1979 Camaro SBC for Street/Strip application. Water pump weighs 4 LBS less than factory, comes with its own cork gaskets. N”
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
“Used with the smallest Comp Thumpr Cam, good to 5500 RPM, Cost is great, No valve float. I would use again with a samll to medium cam and 416 heads.”