1981 Chevrolet K20 Performance and Racing Products

Essential 1981 Chevrolet K20 Performance and Racing Products

Mallory – Distributor Wiring Harness (Part No.29349)

Distributor Wiring Harness

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$30.49


Product Features:
  • Service Part
  • Makes Connections Quick And Easy
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Mr. Gasket – Ultra Seal: Sure-Lock Rocker Arm Nuts (Part No.923G)

Ultra Seal: Sure-Lock Rocker Arm Nuts

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$87.19
Designed to keep the rocker arms positively locked for precise and critical valve train adjustments. Manufactured from quality grade steel, then heat-treated for extra strength and plated with a durable finish. Kits include 16 rocker arm nuts with socket head set screws and one hex key wrench.

Product Features:
  • (16) Rocker Arm Nuts w/ Locks 3/8″-24 Threads
  • Shank O.D. .540″
  • Includes Locks and Hex Wrench
  • High-Quality Grade Steel
  • Heat-Treated For Ex Strength
  • Plated With Durable Gold Tone Finish
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Hooker Headers – LS1 Swap Headers for 66-72 Chevelle, El Camino & More (Part No.2453HKR)

LS1 Swap Headers for 66-72 Chevelle, El Camino & More

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$298.99
LS1 full length engine swap header fits 66-72 Chevelle, El Camino, Monte Carlo and Sprint applications. Hooker has a complete line of engine swap headers, front frame mounts and transmission mounts for popular engine swaps. Available for Chevy, Chrysler and Ford small block and big block engines. Hooker swap headers and mounts are designed to provide an exact fit when used together. Hooker swap headers add the extra horsepower and torque the serious enthusiast demands. Hooker Headers are the best single improvement you can make.

Product Features:
  • High Performance
  • Affordable
  • Durable 16 Gauge Material
  • Welds Easier
  • Lasts Longer
  • Heat Cured
  • High Heat Resistant
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Energy Suspension – Transmission Mount (Part No.3.1129R)

Transmission Mount

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$83.99
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
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MSD Ignition – Wire Set; Black Super Conductor; Small Block Chevy with HEI Cap (Part No.35593)

Wire Set; Black Super Conductor; Small Block Chevy with HEI Cap

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$109.99
The MSD 8.5mm super conductor wire is the performance wire. Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference. In a single 12 inch length of super conductor wire there is only 40 – 50 ohms of resistance. That is the lowest resistance of any helically wound wire. To accomplish this, we use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss in spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) or choke. This choke, or suppression capability, keeps the EMI inside the wire where it cannot interfere with other electronics on your vehicle. The outer sleeve that surrounds the conductor assembly is just as impressive. A proprietary blend of silicone and synthetic material produce a sleeve that is highly resistant to high heat as well as abrasion and tears. Available in universal kits and bulk lengths.

Product Features:
  • Less than 50 ohms per foot for superior spark
  • Ferro-magnetic impregnated core creates an effective EMI choke
  • 40 ft. Of Conductor Wound Into A Single Foot Of Wire
  • For high EMI suppression
  • Conductor core features Dupont Kevlar material
  • Proprietary compound sleeves for resistance to high heat/abrasion
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Energy Suspension – Hyper-Flex Polyurethane Cab & Body Mount Set (Part No.3.4103G)

Hyper-Flex Polyurethane Cab & Body Mount Set

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$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
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Russell – Street Legal, K-10/K-20 P/U 4WD (Part No.672420)

Street Legal, K-10/K-20 P/U 4WD

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$63.99
Russell’s wide variety of lightweight aluminum adapter fittings allow for the connection of Russell hose ends to almost any component. Adapters are offered in standard thread, metric thread and pipe thread to fit most popular oil pumps, fuel pumps, fuel f
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FEL-PRO Performance – PERFORMANCE REAR MAIN SEAL SET (Part No.2912)

PERFORMANCE REAR MAIN SEAL SET

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$36.99
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.
  • Not intended for use in emission controlled vehicles.
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Spectre – Differential Cover (Part No.6080)

Differential Cover

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$59.99
Spectre’s Chrome GM Differential Covers feature a 14 bolt design and include the chrome bolts and gasket needed for an easy install. Made to OEM specifications these differential covers are triple chrome plated ensuring they perform as well as they look. This product fits the following vehicles with a 9.5 inch ring gear: 1981 and up Chevy/GMC (rear), 1973-1995 Chevy/GMC 3/4 ton-1 ton 2/4 wheel drive (rear). Includes 14 SAE standard chrome bolts for installation. You’ll need to supply your own bolts if your application requires metric bolts.

Product Features:
  • Fits the following vehicles with 9.5″ ring gear: ’81-up Chevy/GMC (rear), ’73-’95 Chevy/GMC 3/4-1 ton 2/4WD (rear)
  • Triple chrome plated
  • 14 bolt design cover
  • 14 chrome 5/16 inch -18 x 3/4 inch differential cover bolts included
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Edelbrock – Performer RPM Series fuel pump for SBC and W Series Chevy (Part No.1721)

Performer RPM Series fuel pump for SBC and W Series Chevy

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$168.99


Product Features:
  • Unique Valve Design
  • Improves Flow Quantity/Quality
  • Supports Engines Up To 550 HP
  • Hi-Vol 0.375 in. NPT Inlet/Outlet
  • Produces 6 psi
  • Gasoline Or Mixed Fuels Only
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Accel – Ignition/Electrical (Part No.130120)

Ignition/Electrical

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$16.99
ACCEL Hi-Performance rotors offer superior protection from arc-thru and crossfire. Features hi-performance 60,000 volt alkyd compound, stress-relieved at molding to ensure stability and resist centrifugal forces at high racing RPMs.

Product Features:
  • Max stability for all RPM ranges
  • Heavy duty for maximum energy transfer
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Motive Gear – Performance Differential Ring and Pinion (Part No.G885410)

Performance Differential Ring and Pinion

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$222.99


Product Features:
  • GM 10BL 8.5 R/P 4.10 FRT/REAR MGP
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K&N – Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine (Part No.HP-2001)

Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine

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$17.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. Designed to operate with all synthetic, conventional, and blended motor oils, K&N’s pleated synthetic-blend filtration media helps to shield your engine from contaminants and ensure a consistent flow of oil. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.

Product Features:
  • HIGH FLOW RATES: Designed to provide exceptional flow rates and a consistent flow of oil to your engine
  • VERSATILE COMPATIBILITY: Designed to operate with all synthetic, conventional, and blended motor oils
  • PROTECT YOUR ENGINE: Pleated synthetic-blend filtration media removes most harmful contaminants
  • EXTENSIVELY TESTED: Laboratory tested to ensure excellent capacity and burst strength
  • EASY TO REMOVE: Fast and easy Wrench-Off removal
  • HEAVY-DUTY CONSTRUCTION: Heavy-duty canister for outstanding durability
  • HIGH CAPACITY: Withstand the longer service intervals now recommended by some vehicle manufacturers
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PerTronix – D9001 Flame-Thrower HEI Distributor Advance Curve Kit (Part No.D9001)

D9001 Flame-Thrower HEI Distributor Advance Curve Kit

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$26.99
Mechanical Advance Curve Ki tPrecision machined chromoly weights and center plate eliminate erratic timing. Three sets of springs, guide bushings and complete installation instructions make recurving your distributor easy.

Product Features:
  • PerTronix D9001 Flame-Thrower HEI Distributor Advance Curve Kit
  • Precision machined chromoly weights and center plate.
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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 1 Piece (Part No.1257)

Lower Intake Manifold Gasket Set: 1 Piece

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$26.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
  • SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
  • ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
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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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Hays – Power Train (Part No.85-113)

Power Train

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$641.99
Power Train

MSD Ignition – Coil; GM External HEI Coil; High Performance (Part No.8226)

Coil; GM External HEI Coil; High Performance

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$71.99
Top off your GM ignition system with these great new replacement coils. The GM coils have MSD performance in factory style housings. MSD designed these coils by combining our blaster coil experience with e-core coil efficiency. Each coil has a unique turns ratio plus there is lower primary resistance than the stock coil. This all amounts to a bolt-in replacement coil that produces more output voltage. The coils will work with stock ignition systems as well as MSD equipped cars and trucks. Installation tip: If you plan to install an MSD ignition with your GM dual connector coil, use PN 8876 harness for a direct plug-in installation.

Product Features:
  • Direct performance replacement for GM dual connector coil
  • 100:1 Turns Ratio
  • Lower Primary Resistance Produces High Voltage Output
  • Works w/Stock Ignition As Well As MSD Ignitions
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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 – Alternator Bracket (Part No.4954)

Alternator Bracket

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$19.29
These brackets are made from heavy gauge steel, polished to a high luster, then chrome plated. Similar in design to OEM units, these brackets can be adapted to other engines.

Product Features:
  • Chrome plated
  • Similar to OEM design
  • May be adaptable to other applications
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Flowmaster Inc. – 40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.42543)

40 Series Muffler, 2.5in Offset Inlet 2.5in Offset Outlet, Non-Reversible, Aggressive Sound

from

$99.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Energy Suspension – Sway Bar Bushing Set (Part No.3.5180G)

Sway Bar Bushing Set

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$44.99
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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Mr. Gasket – Enhancement Products (Part No.8824)

Enhancement Products

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$61.99
Replace your stock black engine pulleys with a pair of chrome plated steel pulleys from Mr. Gasket. The pulleys are highly polished then chrome plated for lasting beauty.

Product Features:
  • Highly polished for lasting beauty
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Rancho – U-Bolt Kit (Part No.RS705)

U-Bolt Kit

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$79.99
Replace your old or broken U-bolts with these high strength Rancho replacement U-bolt kits. These kits will work with a stock or an aftermarket leaf spring pack.

Product Features:
  • These replacement U-bolts are for Rancho suspension systems only. Do not use them on other suspension kits.
  • After 100 miles of use and after every off-road use, inspect all U-bolts for proper torque values.
  • Made from high strength steel
  • Works with a stock or an aftermarket leaf spring pack
  • Sold in a master quantity of 15
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Edelbrock – Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads (Part No.5703)

Sure Seat Valve Springs for S/B Chevy O.E Cast iron Cylinder Heads

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$65.99
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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Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.946G)

Ultra Seal: Harmonic Balancer Bolt/Washer Kit

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$27.49
This is a high quality bolt set that is made of grade 8 steel and will meet your requirements for a quality bolt set, this set will work on original equipment, high performance street, drag or circle track applications.

Product Features:
  • These Are Have A Zinc Dichromate Finish
  • Tall Hex Head Bolt To Prevent Slippage
  • Extra Thick Parallel Ground Washer
  • Washers Provides More Accurate And Uniform Torque
  • Grade 8 Alloy Steel
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Accel – Distributor Cap And Rotor Kit (Part No.8123)

Distributor Cap And Rotor Kit

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$48.49


Product Features:
  • Heavy Duty Cap and Rotor Kit
  • With Brass Inserts
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Mr. Gasket – Thermocap Radiator Cap (Part No.2470R)

Thermocap Radiator Cap

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$48.09
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.

Product Features:
  • Indicates coolant temperature
  • Helps prevent coolant injuries
  • Fahrenheit and centigrade readings
  • Color-coded temperature ranges
  • Integrated coolant reclamation valve
  • Improves under-hood appearance
  • Chromed crown with a colored trim ring
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Popular 1981 Chevrolet K20 Performance and Racing Products Categories

1981 Chevrolet K20 Performance and Racing Products

You count on your 1981 Chevrolet K20 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 243 Performance and Racing Products ranging in price from $7.99 to $1,009.99, you’re sure to find everything you need for your 1981 Chevrolet K20.

Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 25 different brands like Mr. Gasket, Edelbrock, and K&N. 1981 Chevrolet K20 Performance and Racing Products start as low as $7.99!

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 2,376 extensive product reviews on 1981 Chevrolet K20 Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Distributor; Street Fire; Chevrolet V8 GM HEI with 4-Pin Module with 4.7 stars and Performance Exhaust Gasket Set for Enhanced Sealing and Durability with 4.6 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 1981 Chevrolet K20 below to get started!

Top-Rated Performance and Racing Products Brands For Your 1981 Chevrolet K20

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 1981 Chevrolet K20 running right for years to come. In our inventory you’ll find brands like Mr. Gasket, Edelbrock, K&N, and even more.

Popular Flowtech Performance and Racing Products

You’ll find popular Flowtech brand products across Performance Exhaust Products. All are waiting to get your 1981 Chevrolet K20 back on the road. Some of the top-rated Flowtech products 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


If Edelbrock are what you’re looking for, our inventory holds plenty. We stock Edelbrock brand Performance and Racing Products for your 1981 Chevrolet K20, and 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 1981 Chevrolet K20 Performance and Racing Products

What are the most purchased Performance and Racing Products for the 1981 Chevrolet K20?

Out of 243 Performance and Racing Products for the 1981 Chevrolet K20, the most popular in our inventory are:
High Performance 180 Degree Thermostat for Increased Flow
from $26.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats
Ultra-Seal Intake Manifold Gasket with Silicone Beading
from $31.99
(18)
Ultra-Seal Intake Manifold Gasket with Silicone Beading
Performance Engine Intake Manifold Gaskets

What are the top-rated 1981 Chevrolet K20 Performance and Racing Products?

Top-rated Performance and Racing Products for your 1981 Chevrolet K20 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”
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”
High Output Mechanical Fuel Pump - 110 GPH Free Flow
from $144.99
(12)
High Output Mechanical Fuel Pump – 110 GPH Free Flow
“Used it in my 1930 hot rod.”