GMC K25 Performance and Racing Products

Essential GMC K25 Performance and Racing Products

Hooker Headers – Super Competition Header Gasket (Part No.10809HKR)

Super Competition Header Gasket

from

$23.29
Hooker’s precision-matched Super Competition header gaskets provide a sure fit and unmatched exhaust sealing. This OEM quality gasket is constructed of a thick ,.060 inch, high temperature, non-asbestos fiber laminate with a perforated steel core, which provides a superior grip and adhesion. This construction also contributes to exact fit compliance between the cylinder head and header flange, offering excellent sealing properties during extreme temperature and operating conditions.

Product Features:
  • Tear Resistant
  • Precisely Cut To Match Header
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Mr. Gasket – Ultra Seal: Competition Screw-In Rocker Arm Studs (Part No.1074)

Ultra Seal: Competition Screw-In Rocker Arm Studs

from

$85.09
Mr. Gasket competition screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street and race applications.

Product Features:
  • Black Oxide Coated Grade 8 Steel
  • Kit Contains 16 Studs
  • Easy To Install
  • Heat Treated Steel
  • Prevents Stud Flexing
  • Black Plated Finish
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Rancho – Dual Steering Damper Kit (Part No.RS98501)

Dual Steering Damper Kit

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$251.99
Designed to reduce wheel shimmy and end vibration caused by larger tires, the Rancho® steering stabilizer kit cuts down on steering arm fatigue to improve handling. The kit includes two Rancho RS5000® steering stabilizers and installation brackets.

Product Features:
  • COMPATIBILITY — Designed for a variety of trucks and SUVs from Chevrolet®, GMC®, Ford®, Dodge®, Jeep® and Plymouth®
  • IMPROVED HANDLING AND PERFORMANCE — Reduces wheel shimmy, bump steer and vibration which helps minimize on- or off-road driver fatigue
  • ACCOMMODATES LARGER TIRES — Engineered for vehicles with oversized wheels and tires.
  • ENGINEERED TO LAST — Features protective boot to shield shock rod and oil seal and 0.25-in. high-strength, low-alloy steel bracket construction for long life
  • EASY TO INSTALL — Includes one Rancho RS5000® steering stabilizer and brackets that bolt directly to factory steering linkage with included mounting hardware, no modifications needed
  • RESISTS CORROSION — Durable black powder-coated and/or zinc-plated brackets resist rust and corrosion
  • PRECISION DESIGN — Brackets are CNC cut and bent to exact specifications for a perfect fit
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Motive Gear – Differential Mini Spool (Part No.MSD44-30)

Differential Mini Spool

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$101.99


Product Features:
  • MINI SPOOL – DANA 44, 30 SPL.
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Competition Cams – Magnum 253/253 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454 (Part No.CL11-214-4)

Magnum 253/253 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454

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$376.99
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. Ideal for use with higher compression ratio engines that

Product Features:
  • Best with aftermarket torque converters and 9.5:1 compression.
  • Great high RPM power.
  • Easy on valve train parts.
  • Can be used with mild ratio rocker arms and traditional performance valve springs.
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Competition Cams – CAMSHAFT, SBC 249 XTREME ENERGY COMPUTER CONTROLLED HYDRAULIC 1 EA (Part No.12-249-4)

CAMSHAFT, SBC 249 XTREME ENERGY COMPUTER CONTROLLED HYDRAULIC 1 EA

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$276.99
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts, the Xtreme Energy grind family offers gains in torque and horsepower while still delivering adequate vacuum for power brakes and other vacuum dependent accessories. Xtreme Energy camshafts work great in carbureted applications, but offer the best performance with aftermarket intake manifolds, lower gear ratios, headers and free flowing exhaust.

Product Features:
  • HYDRAULIC – Xtreme Energy Computer Controlled: Great in throttle body, crossfire or carbureted engine and 305 TPI.
  • 249/260 Advertised Duration, 206/212 Duration @ .050″, .434″/.444″ Lift, 112 Lobe Separation
  • Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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Energy Suspension – Sway Bar Bushing Set (Part No.3.5180R)

Sway Bar Bushing Set

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$41.99
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
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Edelbrock – Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet (Part No.60909)

Performer Small-Block Chevy Cylinder Head 64cc Hydraulic Flat Tappet

from

$1009.99
Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
  • 64cc Combustion Chambers Improve Performance
  • Retain Stock Compression Ratio
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Edelbrock – Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Black Steel (Part No.4443)

Signature Series Valve Covers: Small Block Chevy 262-400 1959-86, Black Steel

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$56.99
The Edelbrock #4443 Signature Series Valve Covers are designed for Chevrolet 262-400 ’59-86 applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:
  • Small Block Chevy 262-400 1959-86
  • Short
  • Black Steel
  • Set Of Two
  • Matching breathers sold separately.
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Holley – Prem Street Carbs (Avengers) (Part No.0-80570)

Prem Street Carbs (Avengers)

from

$626.99
Square flange bolt pattern. Performance calibrated. The ultimate vacuum secondary street performance upgrade.

Product Features:
  • Vibratory Polished For Good Looks
  • Optimized Street Calibration That Works Out Of The Box
  • Factory Preset Electric Choke For Easy Startups
  • Quick Change Vacuum Housing Cap To Tune For Performance/Fuel Econ
  • No Unnecessary Trips Back To The Parts Store
  • Limited Lifetime Warranty
  • 100% Wet-Flow Tested To Assure It Arrives Ready To Run
  • Street Ready; Out Of The Box
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Richmond Gear – RngPnn (Part No.GM85410)

RngPnn

from

$185.99
RngPnn

Mr. Gasket – A/Tdipstick (Part No.9703G)

A/Tdipstick

from

$83.29
Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.

Product Features:
  • Braided Stainless Steel
  • Firewall Mounting
  • Includes Oil Fill Tube
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B & M – Flexplate, SFI 29.1 Approved, Fits 168-Tooth, 2-Piece Rear Main Seal, Chevy V8 (Part No.20230)

Flexplate, SFI 29.1 Approved, Fits 168-Tooth, 2-Piece Rear Main Seal, Chevy V8

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$154.99
As performance levels increase, an O.E. style flexplate just won’t cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1955-85 GM small block (internally balanced) V8 engines along with 4.3L V6 engines. Also fits 1990 and earlier GM big block (internally balanced) V8 engines with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.

Product Features:
  • NHRA/IHRA Legal For All Classes
  • Includes SFI Certification Sticker
  • Ideal For Street Applications
  • To Extreme Duty Racing
  • To High RPM Use
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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
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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
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Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

VALVE SEALS, TEFLON 3/8" 1 ST

from

$31.99
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.

Product Features:
  • Work with .530″ guides and 3/8″ valve stem diameter
  • Valve stem oil seals keep unwanted oil from entering the combustion chamber
  • Several different types of valve seals are offered
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MSD Ignition – Mod HEI Dust Cover, V8 & Odd Fire V6 (Part No.8401)

Mod HEI Dust Cover, V8 & Odd Fire V6

from

$72.99
Stock style replacement modified HEI coil dust cover. Used on 8 cylinder vehicles only.

Product Features:
  • Externally mounted coil
  • Increases reliability
  • Increase performance
  • High quality plastic
  • Resist spark loss
  • Use brass conductors
  • Low resistance connections
  • No modifications
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Hays – Power Train (Part No.85-112)

Power Train

from

$665.99
Matched assembly for maximum reliability. An excellent choice for high performance street applications.

Product Features:
  • Built As Matched Assembly
  • Exceptional Performance
  • Exceptional Durability
  • Long Term Dependability
  • Designed for Street And Street Strip Applications
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Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

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$27.49
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.

Product Features:
  • Opens At 195 Degrees
  • Designed to Resist Large Variations of Coolant Pressure at High RPM
  • Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
  • For High Performance Street, Drag Race, and Oval Track
  • Copper & Brass Construction – Resists Corrosion
  • High Flow
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Mr. Gasket – Intake Bolt Kit (Part No.5004)

Intake Bolt Kit

from

$61.99
Finish your custom engine job with these show quality grade 5 chromed bolts, includes AN washers which have no exposed shoulder for a professional appearance. Includes (12) 3/8-16 x 1-1/4 inch bolts and (12) 3/8 inch AN washers.

Product Features:
  • Chrome plated
  • Grade 5
  • AN washers with no exposed shoulder for a professional appearance
  • Ideal For Street Rods/Machines
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Spectre – Alternator Bracket (Part No.4719)

Alternator Bracket

from

$30.99
This Spectre Alternator Bracket is an upper mount designed to fit 1969 and later Chevrolet Big Block engines with a long water pump. Featuring a triple chrome-plated finish and high quality steel construction, this part is an OEM replacement that mounts on the passenger’s side.

Product Features:
  • Fits Big Block Chevy engines with a long water pump from 1969 and later
  • Manufactured from high quality steel
  • Upper bracket for passenger side mounting
  • Features a triple chrome-plated finish
  • Stock replacement part
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9730)

Performer Series Retainer (Qty 16)

from

$99.99
Product Features:
  • Use W/ Valve Springs Part #5703, 5794
  • Set of 16
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Dynomax – Dual Header Exhaust System Kit for 1973-89 GMC/Chevrolet 4WD Trucks/SUVs (Part No.89004)

Dual Header Exhaust System Kit for 1973-89 GMC/Chevrolet 4WD Trucks/SUVs

from

$134.99
Give your vintage vehicle’s exhaust system an upgrade with a DynoMax? dual header kit. Designed to attach to headers, it features a special reducer that allows for a variety of mounting options.

Product Features:
  • COMPATIBILITY — Designed for a variety of full-size 1973-89 GMC 4WD trucks and Chevrolet 4WD SUVs; see product information for compatibility and engine spec
  • BUILD IT YOURSELF — Design and custom fabricate your own exhaust system with this kit that attaches to OE headers
  • FLEXIBLE MOUNTING — Special reducer design allows for a variety of mounting options
  • IMPROVED FLOW CAPACITY — Smooth bends improve flow capacity over traditional bends
  • SPECS — Extra-long tailpipes with side exits with a full 2.25-in. diameter; tail pipes exit each side of vehicle behind rear tires
  • COMPLETE SOLUTION — Includes all the necessary clamps, hangers, flanges, gaskets, mounting hardware, intermediate, extension and tail pipes
  • PREMIUM MATERIALS — Made from quality aluminized steel for durability and long life
  • PREMIUM MATERIALSÿ–ÿMade from quality aluminized steel for durability and long life
  • BETTER TOGETHER — Complete your system with premium DynoMax mufflers and DynoMax accessories for a complete performance exhaust system
  • WARNING — Not legal for use on pollution-controlled motor vehicles; headers are for racing use only and not intended or applicable for highway use
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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2918)

Engine Crankshaft Seal Kit

from

$42.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
  • Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
  • Not intended for use in emission controlled vehicles.
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Flowtech – Ceramic Header (Part No.31530FLT)

Ceramic Header

from

$463.99


Product Features:
  • Fuel Economy From The Engine
  • Leak Test For Max Performance
  • Ceramic Headers
  • Rust And Corrosion Resistance
  • Mandrel-Formed Power Plenum
  • Leakproof O-Ringed Port Seals
  • Include All Mounting Hardware
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GMC K25 Performance and Racing Products Categories

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

You love your K25. So we’ve made it easier than ever to help you find GMC K25 Performance and Racing Products in our online catalog. Our inventory holds 312 aftermarket and OEM Performance and Racing Products for your GMC K25, ranging from $7.99 to $1,009.99.

We offer parts from 24 brands trusted to make quality Performance and Racing Products for your GMC K25. Before you buy, take some time to read through customer reviews. We currently have 3,720 reviews of GMC K25 Performance and Racing Products from previous customers. Some of the top rated parts include Distributor; Street Fire; Chevrolet V8 GM HEI with 4-Pin Module with 4.7 stars and Ultra-Seal Intake Manifold Gasket with Silicone Beading with 4.3 stars.

Find your K25 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 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

Our inventory holds Performance and Racing Products for your GMC K25 from 24 trusted brands. You’ll find OEM and aftermarket parts from brands like Mr. Gasket, Edelbrock, and K&N, all of which can keep that GMC happy.
We have Flowtech parts available for your GMC K25 in categories like Performance Exhaust Products. Some of the top-rated Flowtech parts in these categories are:
Real-Seal; Header Gasket
from $85.39
(1)
Real-Seal; Header Gasket
Performance Exhaust Manifold Gaskets

Top-Rated Edelbrock Performance and Racing Products

Leading Edelbrock Performance and Racing Products

We carry Edelbrock brand parts for your GMC K25 across several catalog categories, including Performance Fuel Systems. Some of our most reviewed Edelbrock parts include:
Performer EPS Intake Manifold for 1955-86 Small-Block Chevy
from $195.99
(7)
Performer EPS Intake Manifold for 1955-86 Small-Block Chevy
Performance Intake Manifolds

FAQs for GMC K25 Performance and Racing Products

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

Out of 312 Performance and Racing Products for the GMC K25, 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
High Performance 180 Degree Thermostat for Increased Flow
from $26.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats

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

Top-rated Performance and Racing Products for your GMC K25 based on customer reviews/ratings are:
Distributor; Street Fire; Chevrolet V8 GM HEI with 4-Pin Module
from $259.99
(20)
Distributor; Street Fire; Chevrolet V8 GM HEI with 4-Pin Module
“Best Distributor I have ever bought, has made a big difference on my small block Chevy. Stronger spark, more powerful combination, which allows no mor”
Ultra-Seal Intake Manifold Gasket with Silicone Beading
from $31.99
(18)
Ultra-Seal Intake Manifold Gasket with Silicone Beading
“Can’t go wrong with Mr Gasket”
Performance Exhaust Gasket Set for Enhanced Sealing and Durability
from $20.99
(14)
Performance Exhaust Gasket Set for Enhanced Sealing and Durability
“Put new headers on motor”