1966 Chevrolet K20 Pickup Performance Engines

Essential 1966 Chevrolet K20 Pickup Performance Engines

Mr. Gasket – Ultra Seal; Intake Gasket (Part No.5817)

Ultra Seal; Intake Gasket

from

$40.99
Nitrile rubber and fiber. Will not crack or split and resists wicking. Withstands 600 plus degree temperatures. Silicone bead around the port creates a tight leak proof seal.

Product Features:
  • Nitrile rubber and fiber
  • Will not crack or split
  • Resists wicking
  • Withstands 600+ temps
  • Silicone bead around port
  • Creates tight leak proof seal
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Edelbrock – Sure Seat Valve Springs for Oldsmobile 330-403 V8 1967-1984 (Part No.5812)

Sure Seat Valve Springs for Oldsmobile 330-403 V8 1967-1984

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$80.99
Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks black oxide coated. 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 – Special Cam Bolt (Part No.944G)

Special Cam Bolt

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$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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Mr. Gasket – Timing Cover Seal (Part No.18)

Timing Cover Seal

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$16.99
Mr. Gasket manufactures a variety of performance parts and accessories, including carburetor and fuel accessories, cooling system accessories, engine components, fasteners, gaskets, and suspension and drive line components. Besides gaskets and fasteners, the Mr. Gasket brand provides a variety of performance and racing products for all parts of your vehicle including: carburetor and fuel accessories, chrome-plated accessories, cooling system accessories, engine components, ignition and electrical accessories, shifter accessories, specialty tools and suspension and driveline components. Mr .Gasket also includes Ultra-Seal gaskets and fasteners.

Product Features:
  • Nitrile rubber and high density cork
  • Will not shrink or stick
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Mr. Gasket – Oil Pan Gasket (Part No.190)

Oil Pan Gasket

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$36.99
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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Competition Cams – Magnum 7.800" Long, .080" Wall, 3/8" Diameter Pushrod Set (Part No.7513-16)

Magnum 7.800" Long, .080" Wall, 3/8" Diameter Pushrod Set

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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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Mr. Gasket – Throttle Cable Bracket (Part No.9885)

Throttle Cable Bracket

from

$14.99
The throttle cable bracket is designed for small block Chevy engines thru 1979 and is to be used in conjunction with the kick down cable Pn9886 for the Turbo 350 transmission. The throttle cable bracket mounts on the intake manifold and will hold cables with round or square mounts. It has a 2 inch adjustable range and is finished off in a beautiful chrome plating.

Product Features:
  • 2 in. adjustable range
  • Includes necessary hardware
  • Chrome plated
  • Individually packaged
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Edelbrock – TIMING CHAIN (Part No.7844)

TIMING CHAIN

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$29.99
Product Features:
  • Timing Chain Only
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Spectre – Water Neck; Chevy (Part No.4727)

Water Neck; Chevy

from

$59.99
Spectre’s vertical Chevrolet V8 water neck is designed to give you a water neck for your Chevy V8 engine when running a custom cooling system that needs a vertical water neck. This water neck has a chrome plated finish for a lasting look that fits great. This water neck includes the bolts and sealing O-ring.

Product Features:
  • Fits Chevy V8 engines
  • Vertical water neck for custom cooling systems
  • Includes bolts and sealing O-ring
  • Chrome plated Easy to install
  • Chrome plated
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Spectre – Engine Dress Steel Up Kit (Part No.54083)

Engine Dress Steel Up Kit

from

$119.99
Spectre’s Engine Dress-Up Kit was designed for the ’58-’86 Chevrolet small block 265-400. This kit includes: stock height baffled covers, chrome T-bar hold downs, chrome PCV breather, chrome breather, chrome oil filler cap, grommets, and a stainless steel braided PCV hose with red/blue Magna-Clamps. Designed for use with OE specifications for fit and function, Spectre products are engineered to perform as good as they look.

Product Features:
  • For Chevrolet small block 265 and 400
  • Kit includes: stock height baffled covers, chrome T-bar hold downs, chrome PCV breather, chrome breather, chrome oil filler cap, grommets, and a stain
  • Designed for use with OE specifications for fit and function
  • Made from high quality material
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Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chevrolet (Part No.7378)

Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chevrolet

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$199.99
The Edelbrock #7378 head gaskets provide the best sealing solution and are matched to Edelbrock cylinder heads for optimal performance. Edelbrock relies on industry leading head gasket manufactures to ensure our head gasket sets will provide the best fit

Product Features:
  • Head: 4.500″ Bore/0.0435″ Thick/12.20cc Vol.
  • Intake: 2.50″x1.31″ Port/.060″ Thick
  • Exhaust: 1.813″x1.75″ Port
  • 5/16″ Valve Cover
  • Multi Piece Configuration
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Edelbrock – C-26 Dual-Quad; Intake Manifold (Part No.54251)

C-26 Dual-Quad; Intake Manifold

from

$640.99


Product Features:
  • Polished PN[5425] Hand-Buffed for Brilliant Shine
  • Designed for 1500 to 6500 RPM Performance
  • Low Profile for Hood Clearance on Most Vehicles
  • Air-Conditioning / Front Oil Tube Bosses Included
  • Stock Alternator Brackets Do Not Fit
  • Use Edelbrock Fuel Line Kit PN[8088] w/Our Carb
  • Carburetor Center-to-Center Dimensions = 6-7/16 in
  • Use Edelbrock Linkage Kit PN[7094] w/Our Carbs
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Edelbrock – Water Pump Big-Block Chevy Standard/Long in Polished Finish (Part No.8861)

Water Pump Big-Block Chevy Standard/Long in Polished Finish

from

$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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Edelbrock – Water Pump for Small-Block Chevy in Satin Finish (Long) (Part No.8811)

Water Pump for Small-Block Chevy in Satin Finish (Long)

from

$307.99
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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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 – Ultra Seal; Competition Screw-In Rocker Arm Studs (Part No.1074)

Ultra Seal; Competition Screw-In Rocker Arm Studs

from

$73.99
This stud uses heat treated grade 8 alloy steel. The enlarged radius base provides extra strength for a more durable stable shank. Black plated finish. Fits Chevy small block and Ford small block.

Product Features:
  • Heat-treated
  • Grade 8 alloy steel
  • Ex strength enlarged radius
  • More durable/stable shank
  • Prevents stud flexing
  • Black plated finish
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Mr. Gasket – Ultra Seal; Sure-Lock Rocker Arm Nuts (Part No.923G)

Ultra Seal; Sure-Lock Rocker Arm Nuts

from

$77.99
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:
  • Sure-lock rocker arm nuts
  • Precise valve train adjustment
  • Keep rocker arms locked
  • High-quality grade steel
  • Heat-treated for ex strength
  • Plated with durable gold tone finish
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Edelbrock – Performer; Cylinder Head (Part No.60659)

Performer; Cylinder Head

from

$587.99


Product Features:
  • 50-State Street Legal Aluminum Cylinder Head
  • Out-of-the-Box Bolt-On Performance
  • 70cc Combustion Chambers Improve Performance
  • Retain Stock Compression Ratio
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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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B & M – Holeshot 3600 (Part No.20425)

Holeshot 3600

from

$796.99
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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B & M – Traveler Converter (Part No.30423)

Traveler Converter

from

$375.99
Torque Converter – Traveler Converter (SUV and Light Truck) for GM 1968 to 1981 TH350, TH375B APPLICATION: GM 1968 to 1981 TH350, TH375B (6) (will not fit TH-350C) Provides slightly higher stall speed than stock to improve pulling power at low speeds. New

Product Features:
  • Ideal For Motor Homes
  • Ideal For Towing Applications
  • Precision Pump Drive Tube
  • Heavy Duty Needle Bearings
  • Furnace Brazed
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Mr. Gasket – Ultra Seal; Harmonic Balancer Bolt/Washer Kit (Part No.946G)

Ultra Seal; Harmonic Balancer Bolt/Washer Kit

from

$25.99
The grade 8 bolts feature high hex head to prevent socket slippage. The thick parallel ground washer allows accurate uniform torque. Black finished, complete with split lock washer to prevent loosening.

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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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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Mr. Gasket – Ultra Seal; Valve Cover Gasket Set (Part No.175)

Ultra Seal; Valve Cover Gasket Set

from

$25.99
Thick, molded rubber with steel carrier. Manufactured from high-density cork and rubber blend gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor flange irregularities and eliminate the possibility of oil leakage. Creates a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Available in standard or extra thick to provide additional valve train to cover clearance. For OE replacement, high performance street, drag race and oval track.

Product Features:
  • Provides Excellent Flange Sealing And Durability
  • For High Perf. Street Drag Race Oval Track
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1640)

Engine Valve Cover Gasket Set

from

$22.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
  • Not intended for use in emission controlled vehicles.
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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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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2900)

Engine Crankshaft Seal Kit

from

$21.49
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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FEL-PRO Performance – PERFORMANCE REAR MAIN SEAL SET (Part No.2912)

PERFORMANCE REAR MAIN SEAL SET

from

$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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1966 Chevrolet K20 Pickup Performance Engines

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 77 different Performance Engines in our inventory ranging from $12.99 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, FEL-PRO Performance, and Edelbrock 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 65 reviews in this category, some of the top rated parts include Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish with 5.0 stars and Sure Seat Valve Springs for Chevy 262-400 V8 1957-95 with 5.0 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 FEL-PRO Performance Performance Engines

We carry FEL-PRO Performance parts in our stock across Performance Engine Cylinder Head Gaskets categories, plus more. For a 1966 Chevrolet K20 Pickup, our most popular FEL-PRO Performance Performance Engines include:
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
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
Engine Valve Cover Gasket Set
from $23.49
(1)
Engine Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets

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:
Ultra Seal; Valve Cover Gasket Set
from $25.99
(7)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
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

FAQs for 1966 Chevrolet K20 Pickup Performance Engines

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

Out of 77 Performance Engines for the 1966 Chevrolet K20 Pickup, the most popular in our inventory are:
Ultra Seal; Valve Cover Gasket Set
from $35.99
(2)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
Engine Crankshaft Seal Kit
from $21.49
(2)
Engine Crankshaft Seal Kit
Performance Engine Main Bearing Gasket Sets
Action Plus Water Pumps
from $215.99
(3)
Action Plus Water Pumps
Performance Engine Water Pumps

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:
Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish
from $257.99
(3)
Performer Intake Manifold for 1955-86 Small-Block Chevy, Satin Finish
“Get the matching carb, increased HP by 50 points”
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.”
Engine Dress Steel Up Kit
from $119.99
(2)
Engine Dress Steel Up Kit
“fast shipping , look good , have not installed them yet”