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 99 Performance Engines from top brands with prices ranging from $12.99 to $1,259.99.

Beyond great prices, we stock trusted brands manufacturing all types of Performance Engines for your Chevrolet R20. Of the 7 OEM and aftermarket parts brands we carry, some of the most popular are FEL-PRO Performance, Mr. Gasket, and Edelbrock.

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.

Essential Chevrolet R20 Performance Engines

Holley – OEM Repl Thottle Bodies (Part No.502-6)

OEM Repl Thottle Bodies

from

$850.99
Holley designed these throttle bodies with all relevant emission provisions and hook-ups for a true 50 state legal installation. They are engineered for a bolt-on installation on stock factory Manifolds for the applications cataloged. The one barrel throttle bodies have been assigned California Air Resources Board (C.A.R.B.) Executive Order (E.O.) number D-115-4. The two barrel throttle replacement bodies are considered to be the functional equivalent of the original equipment throttle body and, as such, are considered to be 50-State legal.

Product Features:
  • Direct Replacement For OE Units
  • 2 in. Throttle Bore
  • 42 percent Area Increase Over Stock TBI
  • Including Air Distribution Ring
  • Increased Torque and Horsepower
  • 50 State Legal
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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
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Spectre – Engine Dress Steel Up Kit (Part No.5428)

Engine Dress Steel Up Kit

from

$99.99
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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Spectre – Valve Cover Gasket Steel/Rubber Bbc (Part No.586)

Valve Cover Gasket Steel/Rubber Bbc

from

$31.99
Spectre’s Valve Cover Gasket is designed using extra thick rubber and a steel reinforced core. Engineered for optimum fit and function, this valve cover gasket provides superior sealing and stops leaks.

Product Features:
  • Extra thick rubber
  • Steel core reinforced
  • Superior sealing
  • Stops leaks
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Edelbrock – Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 (Part No.5802)

Sure Seat Valve Springs for Chevy 262-400 V8 1957-95

from

$60.99
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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FEL-PRO Performance – Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts (Part No.1003)

Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts

from

$39.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
  • NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
  • SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
  • STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
  • DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
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Mr. Gasket – Oil Pan Gasket (Part No.6663G)

Oil Pan Gasket

from

$61.99
Manufactured from high-density cork and rubber blend gasket material. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For OE replacement and high performance street.

Product Features:
  • One-piece design
  • Eliminates potential leaks
  • Prevents over tightening
  • Prevents torque loss
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Weiand – Supercharger Remote Thermostat Housing (Part No.7134P)

Supercharger Remote Thermostat Housing

from

$164.99


Product Features:
  • Remote Thermostat Housing
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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
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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

$27.49
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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Mr. Gasket – TIMING COVER SEAL (Part No.17)

TIMING COVER SEAL

from

$25.99
TIMING COVER SEAL

Edelbrock – Pushrod Set for S/B Chevy (Part No.9629)

Pushrod Set for S/B Chevy

from

$187.99


Product Features:
  • Case-Hardened Tubing
  • Surface Hardening
  • Welded Ends
  • 0.3125 in. Diameter
  • Use with or without Hardened Steel Guideplates
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FEL-PRO Performance – PERFORMANCE REAR MAIN SEAL SET (Part No.2904)

PERFORMANCE REAR MAIN SEAL SET

from

$16.29
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Edelbrock – TIMING CHAIN (Part No.7844)

TIMING CHAIN

from

$29.99
Product Features:
  • Timing Chain Only
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Spectre – Throttle Body Injection Spacer (Part No.11252)

Throttle Body Injection Spacer

from

$94.99
Manufactured from high quality machine finished aluminum, Spectre’s Throttle Body Spacers are engineered to improve engine performance. By providing added volume to the intake manifold and directing air through a tapered internal constriction, this spacer utilizes the Venturi effect to increase the speed of air flowing into your intake manifold. Spectre has designed a number of kits to fit a wide range of specific applications. Each kit includes the necessary gaskets and hardware to bolt directly to the factory components, making installation quick and easy.

Product Features:
  • Includes the necessary gaskets and hardware to bolt directly to the factory components
  • Each kit is designed for the applications listed
  • Manufactured from high quality machine finished aluminum
  • Can be installed in less than an hour using common hand tools with no drilling or cutting required
  • Simple to install
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B & M – Torque Converter, Nitrous Holeshot 3600 (Part No.20482)

Torque Converter, Nitrous Holeshot 3600

from

$563.99
Nitrous Holeshot Converters are Built with the same features as the other B&M Holeshots, with the addition of anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower nitrous delivers.

Product Features:
  • 3400-3800 RPM
  • Small And Big Blocks
  • Serious Performance
  • Furnace Brazed
  • Fully Balanced
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Mr. Gasket – Intake Manifold Bolts (Part No.957G)

Intake Manifold Bolts

from

$21.99
Choose from grade 5 hex or socket head intake bolts or grade 8 bolts with twelve point smaller-than-standard head and flange, ideal for where space is minimal. Bolts and washers are bright zinc plated for protection and appearance.

Product Features:
  • Grade 8 material
  • Extra thick flat washers
  • Ideal for minimal space
  • 12-pt head and flange
  • Zinc plated for protection
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Mr. Gasket – Ultra Seal; Sure-Lock Rocker Arm Nuts (Part No.920G)

Ultra Seal; Sure-Lock Rocker Arm Nuts

from

$59.99
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:
  • They are zinc dichromate plated steel
  • They have black oxide coated set screws
  • Keeps rocker arms positively locked
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Edelbrock – Performer; Cylinder Head (Part No.60469)

Performer; Cylinder Head

from

$569.99


Product Features:
  • Out-of-the-Box Bolt-On Performance
  • Designed For Street/High Performance Big Blocks
  • Specially Designed Oval Ports
  • Increased Flow And Velocity
  • Highly Efficient Semi-Open Style Chamber
  • High Velocity Short Intake Ports
  • Fit GM Mark IV; Gen V; and Gen VI Blocks
  • Bare Head Only; Use PN[60479] for Complete
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Weiand – Action Plus Water Pumps (Part No.9240P)

Action Plus Water Pumps

from

$215.99
Weiand’s light weight, performance aluminum mechanical Action-Plus water pumps give a weight saving of 30 percent to 50 percent over stock cast-iron pumps. These pumps feature a premium quality bearing and seal that have twice the load capacity of stock pumps. Weiand’s exclusive housing counter bore keeps the bearing form walking out. All pumps are designed with the necessary bracket bosses and water connections to fit popular street applications.

Product Features:
  • Twisted Snout Water Pump Design For Updated Style
  • Street Performance
  • Heavy Duty Shaft w/5/8 in. Pilot
  • Six-Blade Stamped Steel
  • Anti-Cavitation Impeller
  • 100 Percent Leak Tested
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Edelbrock – Water Pump for Small-Block Chevy Street Rods in Polished Finish (Part No.8892)

Water Pump for Small-Block Chevy Street Rods in Polished Finish

from

$436.99
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

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
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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
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Mr. Gasket – Special Cam Bolt (Part No.944G)

Special Cam Bolt

from

$12.99
Grade 8, single bolt. Black plated finish. The washers are designed to secure the Mr. Gasket cam button pn1180, pn1181, and pn1183 or can be used as stock replacements.

Product Features:
  • Specialty and drive train fastener
  • Special cam bolts
  • Black plated finish
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Performance Engines Brands You Can Trust For Your Chevrolet R20

7 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:

Popular Spectre Performance Engines

Spectre products for the Chevrolet R20 span several categories. Some of the highest-rated Spectre Performance Engines that will fit your Chevrolet R20 are:
Throttle Body Injection Spacer
from $94.99
(2)
Throttle Body Injection Spacer
Performance Throttle Body Spacers
Valve Cover Gasket Steel/Rubber Bbc
from $31.99
(1)
Valve Cover Gasket Steel/Rubber Bbc
Performance Engine Valve Cover Gasket Sets

Top Chevrolet R20 Performance Engines from Mr. Gasket

Your Chevrolet R20 will be purring again thanks to Mr. Gasket brand Performance Engines available for online order or in-store pick up. Popular Mr. Gasket parts include:
Water Outlet Gasket
from $30.99
(6)
Water Outlet Gasket
Performance Water Outlet Gaskets
Intake Manifold Bolts
from $29.99
(5)
Intake Manifold Bolts
Performance Intake Manifolds
Ultra Seal; Valve Cover Gasket Set
from $40.99
(1)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets

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 $39.49
(1)
Cylinder Head Gasket: Multi-Layered Steel, Without Head Bolts
Performance Engine Cylinder Head Gaskets
Performer Intake Manifold for 1987-95 Small Block Chevy, Satin Finish
from $329.99
(1)
Performer Intake Manifold for 1987-95 Small Block Chevy, Satin Finish
Performance Intake Manifolds
Water Outlet Gasket
from $30.99
(6)
Water Outlet Gasket
Performance Water Outlet Gaskets

FAQs for Chevrolet R20 Performance Engines

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

Out of 99 Performance Engines for the Chevrolet R20, the most popular in our inventory are:
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
Lower Intake Manifold Gasket Set: 9 Piece Set
from $27.49
This product is not rated
Lower Intake Manifold Gasket Set: 9 Piece Set
Performance Engine Intake Manifold Gaskets
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

What are the top-rated Chevrolet R20 Performance Engines?

Top-rated Performance Engines for your Chevrolet R20 based on customer reviews/ratings are:
Action Plus Water Pumps
from $215.99
(3)
Action Plus Water Pumps
“I bought this item for my 1979 Camaro SBC for Street/Strip application. Water pump weighs 4 LBS less than factory, comes with its own cork gaskets. N”
Sure Seat Valve Springs for Chevy 262-400 V8 1957-95
from $60.99
(2)
Sure Seat Valve Springs for Chevy 262-400 V8 1957-95
“Used with the smallest Comp Thumpr Cam, good to 5500 RPM, Cost is great, No valve float. I would use again with a samll to medium cam and 416 heads.”
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
from $62.99
(1)
Cylinder Head Gasket: Steel Core Composite, Without Head Bolts
“Have not had a chance to install, but have used FelPro in the past with good results.”