1966 Chevrolet K20 Pickup Performance Engines

Find your specific 1966 Chevrolet K20 Pickup original or aftermarket Performance Engines below. Order your parts online and have delivered to your home or pick up in-store at Advance Auto.

Essential 1966 Chevrolet K20 Pickup Performance Engines

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$759.99

Single Outer Valve Springs from COMP Cams allow you to build the perfect spring assembly for your application. The valve spring creation process is far more involved than most people realize. Selecting the right metal stock and creating the best design is not done by chance. COMP Cams has developed a process that creates the highest quality valve spring available. The result is a product that meets and exceeds the expectations of today’s engine builders and racers.O.D. Dia. 1 I.D. Dia. 2 Damper Seat Load Open Load Coil Bind Rate (Lbs./In.) Titanium Retainer Steel Retainer Cup Seat Shims 1.524 1.110 Y 122 @ 1.900 309 @ 1.400 1.200 373 721, 732 1732, 741 4779* 4757

Product Features:

Seat pressure: 122 lbs. @ 1.900″, Open Pressure: 309 lbs. @ 1.400″
O.D.: 1.524″, I.D.: 1.110″
Single valve springs with damper

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$213.99

These Magnum Roller Rocker Arms for Chevy V8 265-400 and V6 200-262 applications are the ultimate street rocker. With a 3/8″ stud diameter and 1.52 ratio, they are designed for serious performance enthusiasts. All Magnum Roller Rocker Arms are constructed

Product Features:

Roller tip reduces friction while stiff design and superior ratio accuracy yield more effective valve lift
For applications with less than 350 lbs. of open spring pressure
Constructed from 8620 chromemoly steel, a superior material that will not flex and ensures maximum lift
Ultimate street roller rocker arm designed for serious performance enthusiasts

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$499.99

HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) Application: HoleShot 2400 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 c

Product Features:

Furnace Brazed Impeller
Steel Alloy Pump Drive Tube
Heavy Duty Needle Bearing
Between Stator and Turbine
Furnace Brazed Turbine

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$17.79

Big Block Chevrolet tubular head dowel, .638/.639 inch o.d. (outer diameter) by 1/2 inch. Packaged two per set. These hard to find dowel pins are precision machined then case hardened for accurate alignment in engine assembly.

Product Features:

Precision Machined
Case Hardened
Give Accurate Alignment
2 Per Set

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$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

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$31.99

Edelbrock part #6998 Front Timing Cover Gasket set for Big-Block Chevy. Includes front cover gasket and front seal.

Product Features:

Includes replacement timing cover and water pump gaskets and the crank oil seal for big block Chevrolet engines
Features a tough, scuff-resistant silicone rubber coating
Helps in sealing without the engine warming up
Reduces fluid migration through the gasket
Resists fatigue

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$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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$42.99

Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use.brbrThese gaskets are .312 inch thick. That’s substantially thicker than stock which can allow for additional valve train clearance.brbrFits Chevrolet 396,402,427,454,502 Gen IV, Gen V and Gen VI Big Block.

Product Features:

This Gasket Has A Cork Rubber Blend
Provides Excellent Sealing And Durability
Extra Thick For The Hard To Seal Applications

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$68.99

Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.brbrGasket Bore 4.130 inch, Compressed thickness 0.055 inch

Product Features:

Five layer (graphite core/perforated steel outer layers) composite construction
Graphite core is excellent transfering heat away from hot spots in head preventing gasket burn-out.
Provides excellent stability, compressibility and high temperature endurance
Coated with high temperature silicone to ensure sealing of engine fluids
Will not brinell (indent) aluminum cylinder heads
For high performance street, drag race and oval track use
Compatible w/High Octane Fuel
Compatible With Exotic Fuel

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$475.99

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 one direction for optimum efficiency. In the early days of the automotive performance industry, you either ran what was available, or you fabricated something you thought met your needs. Such needs were the building blocks of this industry, and it was through the efforts of many that we have the automotive aftermarket, but it was through the work of one name in particular to which many in the industry owe a great debt, and that name is Edelbrock.

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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$40.19

Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.

Product Features:

Manufactured from cellulose/nitrile composition gasket material.
Provides excellent sealing and durability.
Can be trimmed if necessary for modified port applications.
Complete with manifold end seals and distributor gasket.
For OE replacement, high performance street, drag race and oval track use.

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$26.99

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 180 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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$26.99

Precision die cast, 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:

Precision die-cast
Chrome plated for looks
O-ring seal to prevent water leaks
Mounting hardware included

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$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

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$704.99

Product Features:

Great For Street Machines/Street Rods/Muscle Cars
Two Piece Design
Individual D-Shaped Runners
Optimized For Broad Power Range/Large Plenum Area
Can Be Used For Blow-Through Superchargers
Fully CNC Machined For A Perfect Fit
No Exhaust Crossover

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$381.99

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
Excellent Throttle Response and Mid-Range Power
50-State Street Legal if Correct Carburetor Used
Accepts Late-Model Choke; Waterneck; and HEI
Accepts A/C And Alternator
Accepts Exhaust Heated Chokes and Accepts EGR

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$30.99

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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$30.19

Mr. Gasket Performance Oil Pan Gaskets are manufactured from a high-density cork /rubber blend gasket material to provide excellent sealing and durability. Comes complete with molded rubber front/rear oil pan seals. For original equipment replacement and high performance street use.brbrFits Chevrolet 265,283,302,307,327,350,400 Gen I Small Block.

Product Features:

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

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$157.99

Magnum Pushrods from COMP Cams offer an affordable solution for your .080″ wall chromemoly pushrod needs. Designed to withstand the stresses of a high performance engine, Magnum Pushrods are head-treated for extended durability and have precision formed, reinforced ends. Magnum Pushrods are black-oxide finished with their part number and length laser etched onto the surface for easy identification.

Product Features:

3/8″ Diameter, 7.800″ Length
Magnum Pushrods for Small Block Chevy
One-piece .080″ wall chromemoly steel tubing
Heat-treated for extended durability and guide plate compatibility
Precision formed and reinforced pushrod end

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$189.99

Product Features:

Case-Hardened Tubing
Welded Ends
5/16 in. Diameter
Use with or without Hardened Steel Guideplates

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$1084.99

The Edelbrock #604919 Performer Bare High Compression Cylinder Heads are designed for Big-Block Chevy Oval Port V8 applications. These Edelbrock Performer Series Cylinder heads are 50-state street legal and provide outstanding performance from Idle-5,500

Product Features:

High Compression
100cc Combustion Chamber Volume
290cc Intake/110cc Exhaust Runner Volume
2.19 in. Intake/1.88 in. Exhaust Valve Diameter
0.562 in. Deck Thickness

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$1070.99

Product Features:

Complete Single For Flat Tappet
110cc Combustion Chamber Volume
290cc Intake/110cc Exhaust Runner Volume
2.19 in. Intake/1.88 in. Exhaust Valve Diameter
0.562 in. Deck Thickness

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$74.99

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

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$29.99

Product Features:

Timing Chain Only

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$235.99

Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications. Offering

Product Features:

Good blend of efficiency and performance.
Perfect choice for performance street rebuilds.
Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.

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$522.99

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early i

Product Features:

Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
Best with aftermarket converters and more rear gear.
Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

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$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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$23.99

This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It’s also injection molded for a precise fit.

Product Features:

Repairs That Leaky Rear Main Sail
Silicone Rubber to Withstand Extreme Engine Oil Temperatures
Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal
Injection Molded for Precise Fit

Popular 1966 Chevrolet K20 Pickup Performance Engines Categories

Performance Engine Coolant Thermostats

Performance Intake Manifolds

Performance Engine Water Pumps

Performance Water Outlets

Performance Engine Cylinder Head Gaskets

Performance Engine Intake Manifold Gaskets

Performance Engine Timing Sets and Components

Performance Engine Valve Springs

Performance Engine Valve Cover Gasket Sets

Performance Engine Rocker Arms

Performance Engine Camshafts

Performance Engine Oil Pan Gaskets

Performance Intake Manifold Hardware

Performance Engine Main Bearing Gasket Sets

Performance Engine Cylinder Head Installation Kits

Performance Engine Timing Cover Gasket Sets

Performance Engine Push Rods

Performance Engine Cylinder Heads

Performance Torque Converters

Performance Engine Valve Spring Retainer

Maybe you’re in the middle of a full rebuild of that 1966 Chevrolet K20 Pickup. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 80 different Performance Engines in our inventory ranging from $14.99 to $1,268.99. That means you can find the exact parts or products you need to keep that 1966 Chevrolet K20 Pickup running smoothly.

Performance Engines are only as good as their brand. We stock 7 different brands to make sure you have plenty of trusted parts to choose from for your 1966 Chevrolet K20 Pickup. Mr. Gasket, Edelbrock, and FEL-PRO Performance are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Performance Engines for your 1966 Chevrolet K20 Pickup, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 130 reviews in this category, some of the top rated parts include Action Plus Water Pumps with 3.7 stars and Action Plus Water Pumps with 1.5 stars.

So if you’re in the market for aftermarket Performance Engines to keep your 1966 Chevrolet K20 Pickup rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Performance Engines Brands To Make Your 1966 Chevrolet K20 Pickup Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1966 Chevrolet K20 Pickup demands trusted brand parts and products to keep it running. Many trusted brands of Performance Engines make up Advance Auto Parts’ inventory, and all are ready to help make your K20 Pickup the best it can be. Be sure to browse some of our top Performance Engines brands and parts.

Popular B & M Performance Engines

We carry B & M parts in our stock across Performance Torque Converters categories, plus more. For a 1966 Chevrolet K20 Pickup, our most popular B & M Performance Engines include:

from $339.99

(1)

Tork Master 2400

Performance Torque Converters

from $499.99

(1)

Tork Master 3000

Performance Torque Converters

Top 1966 Chevrolet K20 Pickup Performance Engines from Mr. Gasket

Mr. Gasket products are another trusted brand when it comes to Performance Engines for your 1966 Chevrolet K20 Pickup. Popular Mr. Gasket parts include:

from $26.99

(20)

High Performance 180 Degree Thermostat for Increased Flow

Performance Engine Coolant Thermostats

FAQs for 1966 Chevrolet K20 Pickup Performance Engines

What are the most purchased Performance Engines for the 1966 Chevrolet K20 Pickup?

Out of 80 Performance Engines for the 1966 Chevrolet K20 Pickup, the most popular in our inventory are:

from $195.99

(7)

Performer EPS Intake Manifold for 1955-86 Small-Block Chevy

Performance Intake Manifolds

from $39.49

(1)

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

Performance Engine Cylinder Head Gaskets

from $52.99

(1)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

Performance Engine Cylinder Head Gaskets

What are the top-rated 1966 Chevrolet K20 Pickup Performance Engines?

Top-rated Performance Engines for your 1966 Chevrolet K20 Pickup based on customer reviews/ratings are:

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”

from $215.99

(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”

from $213.99

(1)

MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST

“just spill on break in oil on rocker wheels,adjust nut down till u can’t go any more and then back off 1/2 turn and your done no noise on start up eve”

1966 Chevrolet K20 Pickup Performance Engines

More 1966 Chevrolet K20 Pickup Performance Engines

Essential 1966 Chevrolet K20 Pickup Performance Engines

Competition Cams – Engine Valve Spring Kit (Part No.911-16)

Competition Cams – MAGNUM ROLLER ROCKERS, SMALL BLOCK CHEVY 1.52 1 ST (Part No.1412-16)

B & M – Holeshot 2400 (Part No.20412)

Mr. Gasket – Cylinder Head Dowel Pins (Part No.4377)

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

Edelbrock – Front Timing Cover Gasket Set #6998 For Big-Block Chevy, With Front Seal (Part No.6998)

Edelbrock – Performer Series Retainer (Qty 16) (Part No.9730)

Mr. Gasket – Valve Cover Gasket Set (Part No.182)

Mr. Gasket – Ultra Seal: Head Gasket (Part No.5799G)

Edelbrock – Water Pump Big-Block Chevy Standard/Long in Polished Finish (Part No.8861)

Mr. Gasket – Intake Gasket (Part No.116)

Mr. Gasket – High Performance 180 Degree Thermostat for Increased Flow (Part No.4364)

Mr. Gasket – Water Neck (Part No.2660)

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

Weiand – Stealth Ram; Intake Manifold (Part No.7540)

Edelbrock – Performer Intake Manifold Small-Block Chevy (Part No.3706)

Mr. Gasket – Oil Pan Gasket (Part No.197)

Mr. Gasket – Oil Pan Gasket (Part No.196)

Competition Cams – Magnum 7.800" Long, .080" Wall, 3/8" Diameter Pushrod Set (Part No.7513-16)

Edelbrock – Pushrod Set for S/B Chevy (Part No.9630)

Edelbrock – XX Performer Big-Block Chevy Oval Port Hydraulic Flat Tappet Cam Polished (Part No.604919)

Edelbrock – Performer Big-Block Chevy Oval Hydraulic Flat Tappet Cam (Part No.60479)

Edelbrock – Performer-Link Adjustable True-Roller Timing Chain Set (Part No.7810)

Edelbrock – TIMING CHAIN (Part No.7844)

Competition Cams – CAMSHAFT, BBC 280 MAGNUM HYDRAULIC 1 EA (Part No.11-202-3)

Competition Cams – CAMSHAFT, SBC 291 MUTHA THUMPR HYDRAULIC ROLLER 1 EA (Part No.12-601-8)

FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2918)

Mr. Gasket – Rear Main Seal Gasket (Part No.1960)

Popular 1966 Chevrolet K20 Pickup Performance Engines Categories