GMC K25/K2500 Pickup Performance and Racing Products

Essential GMC K25/K2500 Pickup Performance and Racing Products

Mr. Gasket – Ultra Seal: Cylinder Head Bolts (Part No.941G)

Ultra Seal: Cylinder Head Bolts

from

$73.99
These grade 8 alloy steel, longer length bolts are designed to compensate for thread length lost when using head bolt washers. This allows increased torque and clamping. Set of 16 does one cylinder head.

Product Features:
  • Cylinder Head Bolts
  • Longer-Than-Stock
  • High Quality Grade 8 Alloy
  • Increase Torque Settings
  • Higher Clamp Loads On Gasket
See More

Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

Ultra Seal: Screw-In Rocker Arm Studs

from

$65.99
Mr. Gasket screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street applications. OE style press in rocker studs can actually pull out of the cylinder head when using high lift camshafts. Includes sixteen studs 3/8-24 x 1.47 inch long top x 7/16-14 bottom.

Product Features:
  • Black Oxide Coated Grade 8 Steel
  • Kit Contains 16 Studs
  • Easy To Install
  • Heat Treated Steel
  • Grade 8 Steel
See More

Motive Gear – Differential Carrier (Part No.6258336)

Differential Carrier

from

$211.99


Product Features:
  • GM10.5″ 14 BOLT OPEN EMPTY CASE 4:10 & DWN
See More

Competition Cams – Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454 (Part No.CL11-602-4)

Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454

from

$1322.99
BIG BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Product Features:
  • Cam and lifter kit for Big Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
  • 295/312 Advertised Duration, 243/257 Duration @ .050″, .522″/.507″ Lift, 107 Lobe Separation
  • Valve spring upgrade required
See More

Energy Suspension – Sway Bar Bushing Set (Part No.3.5179G)

Sway Bar Bushing Set

from

$40.99
Energy Suspension performance polyurethane sway bar bushings and end links offer the greatest improvement in performance among all the products Energy offers. They make a vehicle’s sway bar system much more effective like adding a larger, higher performance sway bar! Economy, increased efficiency, and easy installation are just some of the reasons these products are so popular. Made of Hyper-Flex polyurethane that lasts much longer than O.E.M. rubber bushings.

Product Features:
  • Allows Sway Bar System to Work At 100% Efficiency
  • Zerk Type Fittings
  • Allows for Periodic Greasing
  • Lasts Much Longer Than OEM Rubber Bushings
  • Handling Characteristics Improve Dramatically
See More

Mallory – Promaster Classic Series; Ignition Coil (Part No.29440)

Promaster Classic Series; Ignition Coil

from

$186.99
Universal street and strip. For street-driven vehicles with breaker point ignition or OE electronic ignition. Delivers optimum performance when used with these Mallory ignition products: UNILITE (R) distributor with a HYFIRE (R) capacitive discharge ignition, magnetic breaker less distributor with a HYFIRE (R) capacitive discharge ignition, or dual point distributor. Effective to approximately 6500 RPM when used with a point type distributor (depending on engine combination). Effective to approximately 8000 RPM when used with a Mallory HYFIRE electronic ignition control (depending on engine combination).

Product Features:
  • Glass Filled Polyester Case
  • Longer Spark Duration
  • Increased Performance
  • No Energy Loss Due To Arcing
  • Includes Brass Contact Terminal
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

Energy Suspension – High Performance Transmission Mount for Street & Racing Vehicles (Part No.3.1108G)

High Performance Transmission Mount for Street & Racing Vehicles

from

$41.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
See More

Mallory – Distributor Condenser (Part No.401)

Distributor Condenser

from

$17.09
Distributor Condenser

Spectre – Pulley (Part No.4418)

Pulley

from

$49.99
Spectre’s Double Belt Groove Water Pump Pulley was designed for ’69-’85 small block Chevrolet engines with long water pumps. Measuring 6 3/8 inches in diameter, the double belt groove water pump pulley is triple chrome plated steel. Identify the water pump by looking at the distance between it and the timing cover, long water pumps are about 1 inch away from the timing cover.

Product Features:
  • Double belt groove
  • 6-3/8 In. diameter
  • Identify the water pump by looking at the distance between it and the timing cover, long water pumps are about 1 In. away from the timing cover
  • Triple chrome plated steel
See More

Mallory – Distributor Wiring Harness (Part No.29349)

Distributor Wiring Harness

from

$30.49


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

Mr. Gasket – Super Intake Manifold Bolts (Part No.6080)

Super Intake Manifold Bolts

from

$27.49
These grade 5 hex head bolts are black coated plated for protection and appearance. Hardened flat washers provide uniform torque and prevent galling on aluminum manifolds.

Product Features:
  • Assures Accurate Torque App
  • Prevents Galling Manifold
  • Grade 5 Material
  • Black Oxide Coasted
See More

B & M – Transmission Kit, Master Overhaul Kit For TH400 (Part No.21041)

Transmission Kit, Master Overhaul Kit For TH400

from

$409.99
These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.

Product Features:
  • Complete High Perf. Or Racing Trans. Overhaul
  • Includes Only OEM Valvebody Gaskets
  • Instructions Not Included
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

Mr. Gasket – Chrome Oil Fill Cap – Push-On Style W/Tube For Pvc Hookup – Fitting For Easy Pcv Hose Hook Up (Part No.2063)

Chrome Oil Fill Cap - Push-On Style W/Tube For Pvc Hookup - Fitting For Easy Pcv Hose Hook Up

from

$12.99
This chrome-plated steel push-on breather/oil filler cap fits over your oil filler tube. It has a side fitting for easy PCV hose (positive crankcase ventilation) hook up. Perfect compliment to Mr. Gasket matching chrome oil filler tube, #2066

Product Features:
  • Chrome plated steel
  • Fits stock factory oil filler tubes
  • Features side PCV hook up tube
  • Includes Rubber Grommet
See More

Hays – Power Train (Part No.85-113)

Power Train

from

$641.99
Power Train

B & M – Holeshot 3600 (Part No.20425)

Holeshot 3600

from

$825.99
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
See More

Mr. Gasket – Aluminum Exhaust Gaskets for Intense Heat Resistance (Part No.7402G)

Aluminum Exhaust Gaskets for Intense Heat Resistance

from

$42.99
Upgrade to Mr. Gasket Aluminum Layered Header Gaskets and eliminate blown exhaust gaskets forever. They conform to warped and damaged surfaces to create an airtight, leak-proof seal and will not shrink or deteriorate EVER.

Product Features:
  • Withstands Intense Exhaust Heat
  • Reusable header, exhaust manifold and collector flange gaskets
  • Manufactured from “dead soft” aluminum layers – .125″ thick
  • Easy Removal For Disassembly
  • Conforms easily to surface irregularities (warped flanges)
  • Compresses down to 0.060″ to create a tight leak-proof seal
  • Will not shrink, deteriorate, or blow out- eliminating gasket leaks
  • For high performance street, drag race and oval track use
See More

Mr. Gasket – Water Neck (Part No.9141G)

Water Neck

from

$58.99
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 To Prevent Leaks
  • Swivels For Hard To Fit Applications
  • Comes With Allen Head Bolts
See More

Flowtech – Super Street; Manifold Dual Kit (Part No.52525FLT)

Super Street; Manifold Dual Kit

from

$285.99


Product Features:
  • Increase Performance
  • Heavy Duty
  • Manifold Dual Kit
  • Includes All Hardware
  • Installation Instructions
  • Offer Maximum Versatility
  • Mufflers Not Included
See More

Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Intake Manifold Bolt Set - Chevrolet Small Block - Socket Head 3/8"-16 X 1" Bolts & Washers

from

$17.49
These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8 inch-16 x 1 inch bolts & washers

Product Features:
  • Zinc plated to resist corrosion and provide a clean professional appearance
  • Made from Grade 5 steel for strength and durability
  • Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
  • Allen (socket) Head
  • Zinc Plated For Protection
See More

B & M – Automatic Shifter, Hammer Shifter, Universal (Part No.80885)

Automatic Shifter, Hammer Shifter, Universal

from

$339.99
The Hammer shifter may just be the most comfortable and versatile shifter available. The unique design of the shift handle easily fits all sizes of hands providing the appropriate wrist angle and feel when shifting. The multi-position lockout trigger is s

Product Features:
  • Ratchet Action Shifter
  • Cable Operated
  • Quick Installation
  • Accurate Shifting
  • Reverse Lockout Feature
See More

Mr. Gasket – Starter Motor Heat Shield (Part No.3678)

Starter Motor Heat Shield

from

$43.99
Fits Chevy small block 265-400 CID, Chevy big block 396-454 CID, & 90 degree Chevy V6. The Starter Motor Heat Shield is built with heat-resistant material sandwiched between two aluminum plates. The shield protects the starter from heat buildup from the exhaust system, especially important when using headers.

Product Features:
  • Designed to prevent starter overheat due to extreme exhaust temperature
  • Heat resistant material sandwiched between 2 aluminum plates
  • Protects Starter From High Temperatures
  • Made Of 2 Sheets Of Aluminum Heat Resistant Center
  • Natural Finish
See More

Energy Suspension – Hyper-Flex Polyurethane Cab & Body Mount Set (Part No.3.4103G)

Hyper-Flex Polyurethane Cab & Body Mount Set

from

$116.99
Will replace distorted and worn-out original rubber mounts to maintain car body and truck cab to bed alignment. Original rubber mounts are so soft they often crack, distort, and crush so badly they often fall off and aluminum body mounts are too harsh for street use that they tend to break and cause other components to break. Energy’s specially formulated Hyper-Flex polyurethane cab and body mounts combine the best qualities of both: they’re soft enough for a smooth ride, yet rugged enough for the most demanding road or track. Most sets have a strong zinc plated steel ring molded into them – for added durability and when the application requires it.

Product Features:
  • Assures Longer Lasting Cab to Bed Alignment
  • Replace to Restore Ride Height
  • Gain Durability
  • Stronger Than Original Rubber Mounts
See More

Accel – Distributor Cap And Rotor Kit (Part No.8124)

Distributor Cap And Rotor Kit

from

$48.49


Product Features:
  • Heavy Duty Cap and Rotor Kit
  • With Brass Inserts
See More

GMC K25/K2500 Pickup Performance and Racing Products Categories

Helping You Find the Right Performance and Racing Products for Your GMC K25/K2500 Pickup

You love your K25/K2500 Pickup. So we’ve made it easier than ever to help you find GMC K25/K2500 Pickup Performance and Racing Products in our online catalog. Our inventory holds 277 aftermarket and OEM Performance and Racing Products for your GMC K25/K2500 Pickup, ranging from $7.19 to $1,322.99.

We offer parts from 21 brands trusted to make quality Performance and Racing Products for your GMC K25/K2500 Pickup. Before you buy, take some time to read through customer reviews. We currently have 19,257 reviews of GMC K25/K2500 Pickup Performance and Racing Products from previous customers. Some of the top rated parts include Blaster 2 Coil: High Performance Ignition Upgrade with 4.3 stars and High Performance 180 Degree Thermostat for Increased Flow with 4.2 stars.

Find your K25/K2500 Pickup Performance and Racing Products here, order online, and have your order shipped directly to your home. Prefer to have an in-person look at your GMC K25/K2500 Pickup part to confirm it’s just right? You can find your nearest Advance Auto Parts store and confirm they have the part in stock before heading over.

Top Performance and Racing Products Brands for Your GMC K25/K2500 Pickup

Our inventory holds Performance and Racing Products for your GMC K25/K2500 Pickup from 21 trusted brands. You’ll find OEM and aftermarket parts from brands like Mr. Gasket, Edelbrock, and Accel, all of which can keep that GMC happy.
We have B & M parts available for your GMC K25/K2500 Pickup in categories like Performance Engines. Some of the top-rated B & M parts in these categories are:
Tork Master 2400
from $339.99
(1)
Tork Master 2400
Performance Torque Converters
Tork Master 3000
from $499.99
(1)
Tork Master 3000
Performance Torque Converters

Top-Rated Edelbrock Performance and Racing Products

Leading Edelbrock Performance and Racing Products

We carry Edelbrock brand parts for your GMC K25/K2500 Pickup across several catalog categories, including Performance Fuel Systems. Some of our most reviewed Edelbrock parts include:

FAQs for GMC K25/K2500 Pickup Performance and Racing Products

What are the most purchased Performance and Racing Products for the GMC K25/K2500 Pickup?

Out of 277 Performance and Racing Products for the GMC K25/K2500 Pickup, the most popular in our inventory are:
High Performance Transmission Mount for Street & Racing Vehicles
from $41.99
(17)
High Performance Transmission Mount for Street & Racing Vehicles
Performance Engine and Transmission Mounts

What are the top-rated GMC K25/K2500 Pickup Performance and Racing Products?

Top-rated Performance and Racing Products for your GMC K25/K2500 Pickup based on customer reviews/ratings are:
Blaster 2 Coil: High Performance Ignition Upgrade
from $49.99
(20)
Blaster 2 Coil: High Performance Ignition Upgrade
“Had one before and blew it up, good easy replacement. MSD makes a good product.”
High Performance 180 Degree Thermostat for Increased Flow
from $26.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
“Installed in my 95 mustang perfect fit and working better than hopped or expected!!!”
Dist:Chev V8 Hei Vac W/Coil
from $210.99
(19)
Dist:Chev V8 Hei Vac W/Coil
“Incredible product. Installed in a 71 C20 sbc 350. Performance is wonderful. Easy installation. Follow instructions to the letter, you will not be dis”