Chevrolet R20 Performance Engines

Your One-Stop Shop For Trusted Chevrolet R20 Performance Engines

If you’re in search of Chevrolet R20 Performance Engines aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 260 Performance Engines from top brands with prices ranging from $7.99 to $1,214.00.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Engines for your Chevrolet R20.

And don’t forget to read customer reviews across all Performance Engines categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Performance Engines have to cost top dollar, and we prove it. Browse our top Chevrolet R20 Performance Engines below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Please Select your Vehicle to See Exact Fit Parts

Essential Chevrolet R20 Performance Engines

Mr. Gasket – Cylinder Head Dowel Pins (Part No.4375)

Cylinder Head Dowel Pins

from

$17.79
Dowel pins are precision machined and case hardened for accurate head alignment. Two per set. 5/16 inch x 5/8 inch

Product Features:
  • Precision Machined
  • Case Hardened
  • Give Accurate Alignment
  • 2 Per Set
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Edelbrock – Performer Small-Block Chevy Cylinder Head Hydraulic Flat Tappet Cam (Part No.60859)

Performer Small-Block Chevy Cylinder Head Hydraulic Flat Tappet Cam

from

$1080.00
Product Features:
  • Designed for 1987-95 Throttle Body Injection or Tuned Port Injection 5.7L Small-Block Chevy engines originally equipped with center bolt valve covers
  • Flat Tappet Camshaft Type
  • 60cc chambers with 165cc intake ports
  • Size of intake valve is 2.02 in. and exhaust valve is 1.60 in.
  • Sold as one complete head
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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

$33.99
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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Edelbrock – Complete Sure Seat Valve Spring Kit for Chevy 396-402-427-454 V8 (Part No.5895)

Complete Sure Seat Valve Spring Kit for Chevy 396-402-427-454 V8

from

$266.99
Product Features:
  • Non-Rotator
  • 1.500 in. Outside Diameter
  • 1.082 in. Inside Diameter
  • 1.340 in. Coil Blind
  • Set of 16
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Mr. Gasket – High Performance Thermostat (Part No.4365)

High Performance Thermostat

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$32.49
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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B & M – Holeshot 3600 (Part No.20425)

Holeshot 3600

from

$972.99
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
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Edelbrock – Pushrod Set for S/B Chevy (Part No.9653)

Pushrod Set for S/B Chevy

from

$201.99
Edelbrock part #9653 Pushrods are designed for Chevy 348/409 “W” series V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precis

Product Features:
  • 7.2 in. Length
  • 0.312 in. Diameter
  • 4130 Chromoly Steel Material
  • Black Oxide Finish
  • Made In The USA
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Edelbrock – Performer Series Retainer (Qty 16) (Part No.9731)

Performer Series Retainer (Qty 16)

from

$135.99
Product Features:
  • Use W/ Valve Springs Part #5762, 5795
  • Use W/ Locks Part #9612
  • 1.50 in. Outside Diameter
  • Steel Material
  • Black Oxide Finish
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Mr. Gasket – Timing Cover Seal (Part No.17)

Timing Cover Seal

from

$35.99
If you are changing your camshaft or replacing the timing set, make sure to replace this seal at the same time! Made from Nitrile rubber.

Product Features:
  • Nitrile Rubber And High Density Cork
  • Will Not Shrink Or Stick
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Competition Cams – Xtreme Energy 224/230 Hydraulic Flat Cam (Part No.12-242-2)

Xtreme Energy 224/230 Hydraulic Flat Cam

from

$251.99
HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.

Product Features:
  • HYDRAULIC – Xtreme Energy: Great for street machines, largest cam for stock converter, better with 2000 stall.
  • 268/280 Advertised Duration, 224/230 Duration @ .050″, .477″/.480″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
  • Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.
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Mr. Gasket – Ultra Seal: Screw-In Rocker Arm Studs (Part No.1076)

Ultra Seal: Screw-In Rocker Arm Studs

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$77.99
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
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Mr. Gasket – Water Outlet Gasket (Part No.740C)

Water Outlet Gasket

from

$9.99
This is a high quality gasket that will seal that leaking water neck, and provide you with years of service. This gasket works well in all applications.

Product Features:
  • Made From Cellulose/Nitrile Composition
  • Provides Excellent Sealing And Durability
  • These Gaskets Are Die Cut For a Precision Fit
  • Fits Small Block Chevy V8 Engines 1955-’90
  • Fits Big Block Chevy V8 Engines 1965-’90
  • Fits Small Block Chrysler 318/360 1979-’92
  • Fits Small Block Chrysler 3.9L/5.2L/5.9L Magnum 1992-’03
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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2918)

Engine Crankshaft Seal Kit

from

$43.99
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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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

$20.79
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
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FEL-PRO Performance – Lower Intake Manifold Gasket Set: 9 Piece Set (Part No.1212)

Lower Intake Manifold Gasket Set: 9 Piece Set

from

$27.99
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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Mr. Gasket – Ultra Seal: Valve Cover Gasket Set (Part No.5863)

Ultra Seal: Valve Cover Gasket Set

from

$51.99
These are high quality gaskets that works well on those hard to seal applications. The low density fiber & rubber blend gasket material seals those minor head imperfections with a low clamp force. At .312 inch, the extra thickness can also offer slightly more clearance for roller rockers. Ideal for all those high performance applications where you take the valve covers off and on a lot, and sticking is a problem.brbrFits all 1965-2000 Chevy Big Blocks: 366,396,402,427,454 including GM (General Motors) Gen VI Crate Engines like the 502 and 572.

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
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Edelbrock – Performer Small-Block Chevy 4.3L T.B.I. V6 Intake Manifold (Part No.3713)

Performer Small-Block Chevy 4.3L T.B.I. V6 Intake Manifold

from

$595.99


Product Features:
  • For Idle to 5500 RPM Street-Driven Performance
  • Dual-Plane Low-Rise Intake w/180 Deg Firing Order
  • Patented Runner Design Ensures Broad Torque Curve
  • Computer Chip Available – Return Card in Packaging
  • Accepts All Factory Accessories
  • Not for Vehicles with Flash Memory Computer
  • Gains 6/10s of a Second in 10 to 70 MPH
  • Stock Throttle Body Remains in Stock Position
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Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7809)

Performer-Link Adjustable True-Roller Timing Chain Set

from

$64.99


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
  • 50 State Street Legal
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Edelbrock – Water Pump Cartridge for Small-Block Chevy (Race Style) (Part No.8827)

Water Pump Cartridge for Small-Block Chevy (Race Style)

from

$457.99
Edelbrock #8827 Water Pump small block Chevy cartridge style race ideal to prevent overheating in street rods and street machines, as well as in tow rigs and motorhomes. Using state-of-the-art racing technology, Edelbrock has designed these “super cooling

Product Features:
  • Standard Impeller Rotation
  • 0.750 in. Pilot Shaft
  • 0.750 in. Ball/Ball Bearing
  • 5.8125 in. Block To Hub Height
  • Satin Finish
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Mr. Gasket – Ultra Seal: Harmonic Balancer Bolt/Washer Kit (Part No.7845)

Ultra Seal: Harmonic Balancer Bolt/Washer Kit

from

$32.49
Secure the harmonic balancer or dampener on your Chevy. Works on original equipment, high performance street, drag or circle track applications. Features a heat treated black oxide coated Grade 8 alloy steel bolt for strength with a tall hex head to prevent wrench from slipping. An extra thick parallel ground washer provides accurate, uniform torque, and a lock washer is also included.

Product Features:
  • Heat treated black oxide coated Grade 8 alloy steel
  • Tall hex head bolt to prevent wrench from slipping
  • Extra thick parallel ground washer provides accurate, uniform torque
  • Washers Provides More Accurate And Uniform Torque
  • Grade 8 Alloy Steel
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Competition Cams – Magnum/Drag Race 253/253 Hydraulic Flat Cam and Lifter Kit (Part No.CL12-214-4)

Magnum/Drag Race 253/253 Hydraulic Flat Cam and Lifter Kit

from

$390.99
SMALL BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.

Product Features:
  • Cam and lifter kit for Small Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Magnum: Pro Street/bracket, limited street driving. Intake, gears, 3500+ stall. Racy idle. 10.5:1 compression. OR Drag Race: 3500-4000 stall or 4 speed with 11:1+ compression.
  • 305/305 Advertised Duration, 253/253 Duration @ .050″, .525″/.525″ Lift, 110 Lobe Separation
  • Valve spring upgrade required
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Spectre – Engine Kit SB Chev Ctr Bolt (Part No.5428)

Engine Kit SB Chev Ctr Bolt

from

$106.99
This Spectre engine dress-up kit was designed for the 1987 – 1995 Chevy 305 & 350 engines. This kit includes: stock height valve covers, chrome valve cover T-bolts, chrome oil filler cap, chrome PCV breather, grommets, and an air cleaner adapter stud. The air filter adapter stud, is a z-bolt that is designed to allow you to use a center stud style air cleaner assembly instead of the stock dual-stud setup. Manufactured using high quality materials this kit features triple chrome plated parts.

Product Features:
  • For 1987-1995 Chevrolet 305-350 engines
  • Includes stock height valve covers & T-bolts
  • Includes oil filler caps, pcv vent filter
  • Includes air cleaner Z-Stud
  • Chrome engine kit
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Competition Cams – High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6. (Part No.812-1)

High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.

from

$13.99
High Energy Hydraulic Flat Lifter Chevrolet SBC, BBC, and 194-292/200-262 V6.

Performance Engines Brands You Can Trust For Your Chevrolet R20

8 trusted brands of Performance Engines line our shelves, ready to help keep your Chevrolet R20 running smooth. Below are some of the most popular brands and their top Performance Engines offerings:

Most Purchased Chevrolet R20 Performance Engines from FEL-PRO Performance

When you buy the most frequently purchased FEL-PRO Performance brand Performance Engines, you can be confident it will be the right part for your Chevrolet R20. Here are the FEL-PRO Performance Performance Engines Advanced Auto customers buy the most:
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $42.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Performer T.B.I. Intake Manifold Small-Block Chevy
from $519.99
This product is not rated
Performer T.B.I. Intake Manifold Small-Block Chevy
Performance Intake Manifolds
Intake Manifold Bolts
from $18.29
(12)
Intake Manifold Bolts
Performance Intake Manifolds

FAQs for Chevrolet R20 Performance Engines

What are the most purchased Performance Engines for the Chevrolet R20?

Out of 260 Performance Engines for the Chevrolet R20, the most popular in our inventory are:
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
from $42.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Bolt Kit Intake Hex Head
from $10.99
This product is not rated
Bolt Kit Intake Hex Head
Performance Intake Manifold Hardware
Lower Intake Manifold Gasket Set: 9 Piece Set
from $27.99
This product is not rated
Lower Intake Manifold Gasket Set: 9 Piece Set
Performance Engine Intake Manifold Gaskets

What are the top-rated Chevrolet R20 Performance Engines?

Top-rated Performance Engines for your Chevrolet R20 based on customer reviews/ratings are:
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
from $914.99
(13)
Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam/Lifter Kit
“Worked prefect. Gave me the Hi speed blower back”
Action Plus Water Pumps
from $255.99
(2)
Action Plus Water Pumps
“The twisted neck comes to far up on the hub. For a 2 groove pulley it causes the pulley to hit the water pump. You will also need new bolts for the”
Engine Crankshaft Seal Kit
from $43.99
(1)
Engine Crankshaft Seal Kit
“no better on the market”