1978 GMC G25 Performance and Racing Products

Essential 1978 GMC G25 Performance and Racing Products

Mr. Gasket – Ultra Seal; Valve Cover Gasket Set (Part No.5863)

Ultra Seal; Valve Cover Gasket Set

from

$40.99
Creates a positive seal. Controlled swelling gasket. Thickness will not decrease. Eliminates re-torque of valves. High-tensile strength. Handles ex flange pressure and forms a leak proof seal. Black latex coating.

Product Features:
  • These are a cork rubber blend
  • Extra thick 5/16 in. creates positive seal
  • Also available in standard thickness
  • For OE replacement and high performance apps
See More

Edelbrock – Victor Jr. 23 Degree Intake Manifold Small-Block Chevy (Part No.2975)

Victor Jr. 23 Degree Intake Manifold Small-Block Chevy

from

$404.99
Race winning design for all types of competition. Single plane maximizes torque and horsepower. Runners feature extra material for custom porting. For performance in 3500 to 7500 RPM range. Low profile design helps minimal hood clearance. Can use 1 or 2 inch spacers to tune performance. Use PN(2999) where 1 inch spacers are not allowed. Best for standard port heads.

Product Features:
  • Race Winning Design for all Types of Competition
  • Single Plane Maximizes Torque and Horsepower
  • Runners Feature Extra Material for Custom Porting
  • For Performance in 3500 to 7500 RPM Range
  • Low Profile Design Helps Minimal Hood Clearance
  • Can Use 1 Or 2 in. Spacers To Tune Performance
  • Use PN[2999] Where 1 in. Spacers Not Allowed
  • Best for Standard Port Heads
See More

Edelbrock – Intake Manifold Gasket for 1965-1990, Mark IV B/B Chevy, Rec Port (Part No.7208)

Intake Manifold Gasket for 1965-1990, Mark IV B/B Chevy, Rec Port

from

$30.99
Edelbrock part #7208 Intake Gaskets for 1965-1990, Mark IV 396-402-427-454-555, Rectangular Port 6 Bolt Flange with no crossover allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, an

Product Features:
  • 1.82″x2.46″
  • Rectangular Port Style
  • .060″ Thick
  • Two Piece Configuration
  • Composite Material
See More

Accel – Custom Fit 300+ Race; Spark Plug Wire Set (Part No.7048)

Custom Fit 300+ Race; Spark Plug Wire Set

from

$149.99
These ACCEL wire sets are custom tailored for race engines and their builders. The oversize 8.8 mm wire is rated for 600 degrees Fahrenheit and 60kV. Resists heat, chemicals and moisture. High density insulation eliminates arcing. Route over and under headers.

Product Features:
  • 300+Race- 8.8mm Black
  • For Race Engine Configurations
  • Stainless Steel Spark Plug Terminals
  • Suppression of EMI/RFI
  • 600 Degree Double Silicone Construction
  • Spiral Wound Copper/Nickel Alloy
  • Fully Reactive Ferrite Material
  • 150 Ohms Resistance
See More

Mallory – Distributor Wiring Harness (Part No.29349)

Distributor Wiring Harness

from

$25.99


Product Features:
  • Service Part
  • Makes Connections Quick And Easy
See More

Mr. Gasket – Alternator Bracket (Part No.4954)

Alternator Bracket

from

$16.99
Dress up your engine. These brackets are made from heavy gauge steel, polished to a high luster, then chrome plated for lasting beauty, similar in design to OEM units, these brackets can be adapted to other engines.

Product Features:
  • Heavy gauge steel
  • Polished to high luster
  • Chrome plated for lasting beauty
See More

Edelbrock – Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet (Part No.2103)

Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet

from

$334.99


Product Features:
  • Designed for Optimum Torque and Acceleration
  • Maximum Performance From Idle through Mid-Range
  • Matched to Edelbrock Performer Intakes
  • Includes Hydraulic Lifters and Assembly Lube
  • Major Improvement in Throttle Response and Torque
  • Use For Daily Drivers/Trucks/Vans/RVs/4x4s
  • Take The Guesswork Out Of Camshaft Selection
See More

Spectre – Differential Cover (Part No.60769)

Differential Cover

from

$244.99
Spectre’s Polished Aluminum 12 bolt Differential Cover features a finned design ensuring they look as good as they perform. Includes 12 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your vehicle requires metric bolts. Manufactured using high quality materials, this product is engineered for optimum fit and function.

Product Features:
  • Polished aluminum
  • 12 bolt cover with finned design
  • 12 gold Iridite 3/8 inch -18 x 3/4 inch differential cover bolts included
  • Engineered for optimum fit and function
See More

Edelbrock – TIMING CHAIN (Part No.7844)

TIMING CHAIN

from

$29.99
Product Features:
  • Timing Chain Only
See More

Spectre – Aluminum BBC V/Cover SMOOTH (Part No.5022)

Aluminum BBC V/Cover SMOOTH

from

$274.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for 1965-2000 Chevrolet Big Block 396-502 engines, this valve cover features polished aluminum construction and a smooth design. Sold in pairs, this stock profile cover includes baffles to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for 1965-2000 Chevrolet Big Block 396-502 engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Polished aluminum construction
  • Stock height
  • Features OEM style sealing edge
See More

B & M – Automatic Shifter, Megashifter-Right Hand Drive (Part No.80685)

Automatic Shifter, Megashifter-Right Hand Drive

from

$456.99
The B&M Megashifter has it all, form, function and classic style. This all adds up to bring you a quality shifter that’s been one of the most popular automatic shifters of all time. The light truck Megashifter is better suited for truck and bench seat app

Product Features:
  • Universal Floor Mount Application
  • Cable Operated
  • Quick Installation
  • Accurate Shifting
  • NHRA/IHRA Reverse Lockout Meets Requirements
See More

B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)

Shift Improver Kit For 68-81 TH-350 Transmission

from

$59.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
See More

Edelbrock – Thunder Series AVS; Carb (Part No.18054)

Thunder Series AVS; Carb

from

$452.99
New qwik-tune adjustable secondary air valve. Optional single or dual fuel inlet. Distinctive black accented hardware. No gaskets below fuel level to prevent leakage. Metering rod and step up springs can be changed easily. GM and AMC style throttle linkage. Exclusive 12 month complete satisfaction warranty.

Product Features:
  • New Qwik-Tune Adjustable Secondary Air Valve
  • Optional Single Or Dual Fuel Inlet
  • Distinctive Black Accented Hardware
  • No Gaskets Below Fuel Level to Prevent Leakage
  • Metering Rod/Step Up Springs Can Be Changed Easily
  • GM/AMC-Style Throttle Linkage
  • Exclusive 12 Month Complete Satisfaction Warranty
See More

Spectre – Sbc Blk Off Plate W/Bolts (Part No.42463)

Sbc Blk Off Plate W/Bolts

from

$12.99
Spectre’s triple chrome plated Fuel Pump Block Off Plate was designed for small block Chevrolet engines. Engineered for optimum fit and function, this kit includes a block off plate gasket and chrome mounting bolts with washers.

Product Features:
  • Necessary if switching to electric fuel pump
  • Includes block off plate gasket
  • Includes chrome mounting bolts with washers
  • Triple chrome plated
See More

FEL-PRO Performance – Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set (Part No.1802)

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

from

$25.49
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

MSD Ignition – Rotor; GM HEI Late Model; External Coil Cap (Part No.8427)

Rotor; GM HEI Late Model; External Coil Cap

from

$16.99
Rotor assembly for a GM HEI late model with external coil cap Chevy V8 cap-a-dapt. The cap and rotor of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap and rotor as a set. To make things easy, we now offer these cap and rotor replacement kits.

Product Features:
  • Resist Carbon Tracking
  • Max Voltage Transfer
  • Molded From Insulated Material
See More

Mr. Gasket – Timing Cover Gasket Set (Part No.90)

Timing Cover Gasket Set

from

$21.99
Made from high grade cork granules and a neoprene binder, these gaskets will not shrink or stick and provide excellent sealing and durability. These gaskets can be reused.

Product Features:
  • Will not shrink or stick
  • Provides excellent sealing and durability
  • Reusable
See More

Accel – Distributor Cap And Rotor Kit (Part No.8122)

Distributor Cap And Rotor Kit

from

$41.99
ACCEL cap and rotor kits offer superior protection from arc-thru and crossfire. Features 60k V-rated alkyd compound, stress-relieved at molding to ensure stability. Brass inserts and steel rotor springs provide for high spark energy flow.

Product Features:
  • Features Protection From Arc Thru And Crossfire
  • Features 60K V Rated Alkyd Compound
See More

Mr. Gasket – Breather/Oil Filler Cap (Part No.2060)

Breather/Oil Filler Cap

from

$17.99
This chrome plated breather, embossed with a Mr. Gasket logo, is perfect for race car vacuum balance systems and OEM use. It fits any 1 1/4 inch diameter hole. It has metal baffle/foam element with 1 inch outer diameter neck and 5/8 inch outer diameter breather tube.

Product Features:
  • Internally battled
  • High-porosity filter
  • Ideal for high performance
  • Includes rubber grommet
See More

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
See More

Accel – Super Stock Coil (Part No.8140)

Super Stock Coil

from

$40.99
ACCEL’s super stock is the high-performance replacement for OE canister style coils. Improves starting, idle, throttle response and top RPM power. Works with OE ignitions and computers. Alkyd tower prevents flash over. Uses OE leads. Comes in chrome.

Product Features:
  • 42000 Volts
  • Effective To 6500 RPM
  • Quicker Starting
  • Improved Throttle Response
  • Higher RPM Power
  • Can Finished In Yellow
See More

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
See More

Mr. Gasket – Precision Timing Tape (Part No.1588)

Precision Timing Tape

from

$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
See More

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
See More

Richmond Gear – Differential Ring And Pinion (Part No.12BC456)

Differential Ring And Pinion

from

$185.99
Excel’s broad line of original equipment automotive and light truck/SUV replacement ring & pinion gears, axles, and installation kits offer Richmond’s high OEM quality at affordable prices. The Excel product line covers the most popular vehicles on the road today.

Product Features:
  • Richmond Gear’s EXCel drivetrain products offer high-quality OEM replacement drivetrain products for your vehicle.
  • Richmond Gear’s EXCel line of ring & pinon gearsets provide Richmond quality at affordable prices.
  • EXCel offers a broad line of ring and pinion gears, installation kits, and axle shafts to match most vehicles that are on the road today.
  • EXCel drivetrain products are engineered to exceed OEM specifications by manufacturing to precise specifications in world-class factories, using the latest heat treatment technology, with extensive quality controls throughout.
  • All EXCel drivetrain products are backed by our one year warranty.
See More

Mr. Gasket – Thermocap Radiator Cap (Part No.2470S)

Thermocap Radiator Cap

from

$54.99
Knowing your coolant temperature can help to prevent burn injuries. Thermo Cap, with its built-in calibrated thermometer, indicates the coolant temperature. This is useful information prior to cap removal. Never attempt to remove Thermo Cap when the coolant temperature is very hot. The escaping hot coolant and steam may burn you. Check the Thermo Cap temperature indicator to determine if the coolant is cool enough to make removing Thermo Cap safe. If the coolant is very hot, then thoroughly rinse the radiator with cool water, until the coolant temperature drops into a cooler safe zone Thermo Cap’s integrated coolant reclamation valve works great with your coolant recovery system. Your radiator can reclaim coolant from your overflow bottle. Wide 30 degree to 270 degree Fahrenheit temperature range. Calibrated in centigrade and Fahrenheit. Color-coded temperature ranges. Chromed crown with a colored trim ring. Indicates coolant temperature, Helps to prevent coolant injuries, integrated coolant reclamation valve, Improves under hood appearance, Fits most domestic or import vehicles and various valve pressures available.

Product Features:
  • Indicates coolant temperature
  • Helps to prevent coolant injuries
  • Integrated coolant reclamation valve
  • Improves under hood appearance
  • Fits most domestic vehicles
  • Built in calibrated thermometer
See More

Mr. Gasket – Distributor Hold-Down Clamp (Part No.1009)

Distributor Hold-Down Clamp

from

$9.99
Add sparkle to your engine with this chromed hold-down clamp. With bolt and gasket. Serrations on the bottom prevent distributor and magneto rotation for accurate timing.

Product Features:
  • Rolled Edges For Strength
  • Ideal For Magnetos
  • Ideal For Ignition Distributor
See More

Spectre – Oil Pan (Part No.5480)

Oil Pan

from

$99.99
Spectre’s Oil Pan was designed for the small block 1955-1979 Chevrolet 283-350 with driver’s side dipstick (except 1962-1967 Chevrolet II). This triple chrome plated oil pan has a stock 4 quart capacity and uses 1975 and later gasket with thick front seal. This OEM replacement will not fit Corvette with stock exhaust.

Product Features:
  • Triple chrome-plated
  • Steel construction
  • Stock capacity
  • Made from high quality material
See More

Popular 1978 GMC G25 Performance and Racing Products Categories

1978 GMC G25 Performance and Racing Products

You count on your 1978 GMC G25 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Performance and Racing Products. With 195 Performance and Racing Products ranging in price from $4.99 to $3,779.99, you’re sure to find everything you need for your 1978 GMC G25.

Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 13 different brands like Mr. Gasket, Accel, and K&N. 1978 GMC G25 Performance and Racing Products start as low as $4.99!

One of the best ways to find top quality OEM or aftermarket Performance and Racing Products is by asking professionals. Short of that, you can shop with confidence thanks to our 1,088 extensive product reviews on 1978 GMC G25 Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Differential Ring And Pinion with 4.2 stars and Mechanical Fuel Pump with 3.8 stars.

Did we mention you can order your Performance and Racing Products from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Performance and Racing Products inventory for your 1978 GMC G25 below to get started!

Top-Rated Performance and Racing Products Brands For Your 1978 GMC G25

Trusted Performance and Racing Products OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 GMC G25 running right for years to come. In our inventory you’ll find brands like Mr. Gasket, Accel, K&N, and even more.

Popular FEL-PRO Performance Performance and Racing Products

You’ll find popular FEL-PRO Performance brand products across Performance Engines. All are waiting to get your 1978 GMC G25 back on the road. Some of the top-rated FEL-PRO Performance products in these categories are:
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
Exhaust Manifold Gasket Set
from $31.49
(2)
Exhaust Manifold Gasket Set
Performance Exhaust Manifold Gaskets

Top-Rated Accel Performance and Racing Products


If Accel are what you’re looking for, our inventory holds plenty. We stock Accel brand Performance and Racing Products for your 1978 GMC G25, and some of our most reviewed Accel parts include:
Distributor Cap And Rotor Kit
from $41.99
(23)
Distributor Cap And Rotor Kit
Performance Distributor Cap and Rotor Kits
Distributor Cap And Rotor Kit
from $40.99
(3)
Distributor Cap And Rotor Kit
Performance Distributor Cap and Rotor Kits

FAQs for 1978 GMC G25 Performance and Racing Products

What are the most purchased Performance and Racing Products for the 1978 GMC G25?

Out of 195 Performance and Racing Products for the 1978 GMC G25, the most popular in our inventory are:
Ultra Seal; Valve Cover Gasket Set
from $25.99
(7)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
Exhaust Gasket Set
from $19.99
(14)
Exhaust Gasket Set
Performance Exhaust Manifold Gaskets

What are the top-rated 1978 GMC G25 Performance and Racing Products?

Top-rated Performance and Racing Products for your 1978 GMC G25 based on customer reviews/ratings are:
Differential Ring And Pinion
from $342.99
(23)
Differential Ring And Pinion
“Good product good price”
Mechanical Fuel Pump
from $144.99
(12)
Mechanical Fuel Pump
“Used it in my 1930 hot rod.”
Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet
from $394.99
(10)
Performer 1405 Carburetor: 600 CFM, 4 Barrel, Square Bore, Manual Choke Inlet
“i have delt with every auto parts dealer there is and advance allways treats me like im their only custemer, thanks guys and gals!!!”