1978 Chevrolet K20 Performance and Racing Products

Essential 1978 Chevrolet K20 Performance and Racing Products

Spectre – Aluminum BBC V/Cover SMOOTH (Part No.5022)

Aluminum BBC V/Cover SMOOTH

from

$274.99
Available in various sizes, heights, and finishes, Spectre offers a wide variety of high performance valve covers designed to easily replace your stock covers. Designed for 1965-2000 Chevrolet Big Block 396-502 engines, this valve cover features polished aluminum construction and a smooth design. Sold in pairs, this stock profile cover includes baffles to provide optimum function. With show quality construction and a sealing edge designed for an ideal fit, our valve covers are engineered to look great for applications ranging from custom builds to replacing stock equipment.

Product Features:
  • Designed for 1965-2000 Chevrolet Big Block 396-502 engines
  • Baffled for breather system compatibility
  • Sold in pairs
  • Polished aluminum construction
  • Stock height
  • Features OEM style sealing edge
See More

Energy Suspension – Leaf Spring Bushing Set (Part No.3.2112R)

Leaf Spring Bushing Set

from

$70.99
Adds a dramatic amount of performance and durability to any vehicle, cars, trucks and SUVs. Helps the vehicle be in control – when maneuvering through turns, during standing start accelerations, braking, even over bumps and berms. Made of Energy’s Hyper-Flex performance polyurethane which lasts 5 -10 times longer than conventional rubber components.

Product Features:
  • Made of Superior Hyper-Flex+ Material
  • Adds Dramatic Amount of Performance/Durability
  • Helps Vehicle Be in Control
  • Allows the Suspension to Function Properly
See More

Accel – Distributor Cap And Rotor Kit (Part No.8123)

Distributor Cap And Rotor Kit

from

$40.99


Product Features:
  • Heavy Duty Cap and Rotor Kit
  • With Brass Inserts
See More

Energy Suspension – Body Cab Mount Set (Part No.3.4103G)

Body Cab Mount Set

from

$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
See More

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chevrolet (Part No.7361)

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

from

$128.99
Product Features:
  • Provides excellent sealing and conformability
  • Releases+N747 clean without sticking, if the engine needs to be disassembled
  • Perfect companion for Edelbrock cylinder heads and intake manifolds
  • Does not include end seals
  • Use of a silicone sealant in place of end seal is recommended
See More

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

Timing Cover Seal

from

$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
See More

Accel – Super Coil (Part No.140005)

Super Coil

from

$95.99
These coils feature advanced bobbin technology, highly specialized silicone magnetic steel cores, along with optimized winding, resistance and turns ratios to delivery 10-15 percent more energy than the OEM coils. Specialized high temperature epoxy resists shock and vibration, while increasing thermal conductivity. These are direct plug replacements for OEM coils. They feature bodies and, or secondary towers molded in ACCEL yellow and feature brass secondary contacts (except direct fire coil on plug applications).

Product Features:
  • 10-15% More Energy
  • Direct Plug In Replacement Direct OE Fit
  • Advanced Bobbin Technology
  • Highly Specialized Silicone Magnetic Steel Cores
  • Standard Motor Products SMP Dr-32
See More

Edelbrock – Intake Manifold Gasket for 1965-1990, Oval port 396-402-454 B/B Chevy (Part No.7203)

Intake Manifold Gasket for 1965-1990, Oval port 396-402-454 B/B Chevy

from

$32.99
Product Features:
  • Clean Positive Seal
  • Embossed Silicone Bead Surrounding The Port
  • Matched To Manifolds And Cylinder Heads
See More

B & M – Tork Master 2000 (Part No.20400)

Tork Master 2000

from

$266.99
Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost

Product Features:
  • New Precision Pump Drive Tube
  • Pressure Tested
  • Fully Balanced
  • Needle Thrust Bearing
  • New Thrust Washer
See More

Mr. Gasket – Fuel Pump Block-Off Plate (Part No.1516)

Fuel Pump Block-Off Plate

from

$12.99
The block-off plates are precision cut to cover stock fuel pump openings. Gasket included. Available in chrome plated or polished aluminum finish.

Product Features:
  • Precision cut
  • Gasket included
See More

Energy Suspension – Sway Bar Bushing Set (Part No.3.5118R)

Sway Bar Bushing Set

from

$29.99
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
See More

Edelbrock – Exhaust Manifold Gasket Set for Chevrolet (Part No.7205)

Exhaust Manifold Gasket Set for Chevrolet

from

$31.99
Product Features:
  • Designed To Match Port Openings Of Cylinder Heads
  • Excellent Free-Flowing Seal
See More

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
See More

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
See More

Edelbrock – Thunder Series AVS 800 CFM Carburetor – Electric Choke, EnduraShine Finish (Part No.18134)

Thunder Series AVS 800 CFM Carburetor - Electric Choke, EnduraShine Finish

from

$622.99
New qwik-tune adjustable secondary air valve. Optional single or dual fuel inlet. Distinctive black accented hardware. No gaskets below fuel level to prevent leakage. Metering rod and step up springs can be changed easily. GM and AMC style throttle linkage. Exclusive 12 month complete satisfaction warranty.

Product Features:
  • New Qwik-Tune Adjustable Secondary Air Valve
  • Optional Single Or Dual Fuel Inlet
  • Distinctive Black Accented Hardware
  • No Gaskets Below Fuel Level to Prevent Leakage
  • Metering Rod/Step Up Springs Can Be Changed Easily
  • GM/AMC-Style Throttle Linkage
  • Exclusive 12 Month Complete Satisfaction Warranty
See More

Mallory – Distributor Cap (Part No.261)

Distributor Cap

from

$44.99
Maximum electrical conductivity. Impact resistant. High dialectic strength. Prevents damage.

Product Features:
  • Maximum Electrical Conductivity
  • Impact Resistant
  • High Dielectric Strength
  • Prevents Damage
See More

Hays – Performance; Flexplate (Part No.10-020)

Performance; Flexplate

from

$125.99
Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM engine. Zinc dichromate plated to resist rust and corrosion. Meets SFI specification 29.1 for racing.

Product Features:
  • Thicker Than Stock Steel Plate
  • Ring Gear Securely Welded
  • Dual Bolt Patterns
  • Zinc-Dichromate Plated To Resist Corrosion
  • Withstands High Torque and RPM
See More

Mallory – Distributor Wiring Harness (Part No.29349)

Distributor Wiring Harness

from

$25.99


Product Features:
  • Service Part
  • Makes Connections Quick And Easy
See More

Weiand – Pro-Street; Supercharger Kit (Part No.7751-1)

Pro-Street; Supercharger Kit

from

$4329.99


Product Features:
  • Develop 500 To 550 Plus Horsepower
  • Incredible Torque Gains For Heavy Cars/Towing App.
  • Low Profile Design For A Clean Simple Installation
  • Teflon Tipped Rotors For Sealing Efficiency
  • Full Time Power Every Time You Hit The Gas
  • w/No Lag
See More

Mr. Gasket – Chrome Plated Pulley Set (Part No.4963)

Chrome Plated Pulley Set

from

$189.99
These new pulley sets are designed as matched sets to assure correct alignment of the drive belts. They are highly polished then chrome plated for lasting beauty. They are available in single, double and triple groove sets. Fits Chevy small block, 55-68 with short water pump, double upper and lower.

Product Features:
  • Assures correct alignment
  • Highly polished
See More

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

Water Neck

from

$56.99
This chrome plated water neck is precision die cast for a great fit. It features an O-ring style seal to prevent water leaks. These water necks are first polished to a high luster then chrome plated for lasting beauty.

Product Features:
  • Chrome plated aluminum
  • O-ring style to prevent leaks
  • Swivels for hard to fit applications
  • Comes with allen head bolts
See More

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
See More

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
See More

Mr. Gasket – Alternator (Part No.5122)

Alternator

from

$266.99
Quality chrome plated and remanufactured to exceed OEM specifications for maximum dependability. Tested and output rated at 60 amps.

Product Features:
  • Exceeds OEM specifications
  • Output rated to 60 amps
  • Remanufactured
See More

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
See More

Richmond Gear – RngPnn (Part No.49-0019-1)

RngPnn

from

$399.99
RngPnn

Dynomax – Super Turbo Muffler Uni Fit Aluminized Steel 19" L, 2.5" In, 2.5" Out, Oval (Part No.17758)

Super Turbo Muffler Uni Fit Aluminized Steel 19" L, 2.5" In, 2.5" Out, Oval

from

$109.99
DynoMax Super Turbo performance mufflers exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications. The large internal flow tubes improve exhaust flow and reduce backpressure. Each muffler uses fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone.

Product Features:
  • Large internal flow tubes improve exhaust flow and reduce backpressure
  • Exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications.
  • Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
  • Dyno proven to flow up to 700 SCFM
See More

Spectre – GM Diff Cover Truck 14 Bolt (Part No.6086)

GM Diff Cover Truck 14 Bolt

from

$62.99
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 10.5 inch ring gear: 73-’87 Chevy/GMC 3/4 & 1 Ton 2/4WD (rear), ’75-’00 Chevy/GMC Dually 2/4WD (rear), ’88-’99 Suburban 3/4 Ton 2/4WD (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 a 10.5 inch ring gear: 73-’87 Chevy/GMC 3/4 & 1 Ton 2/4WD (rear), ’75-’00 Chevy/GMC Dually 2/4WD (rear), ’88-’99 Suburban 3/4 Ton 2/4WD (rear).
  • Triple chrome plated steel construction
  • 14 bolt design
  • 14 chrome 5/16 inch -18 x 3/4 inch differential cover bolts included
See More

Popular 1978 Chevrolet K20 Performance and Racing Products Categories

1978 Chevrolet K20 Performance and Racing Products

You count on your 1978 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 315 Performance and Racing Products ranging in price from $6.99 to $4,329.99, you’re sure to find everything you need for your 1978 Chevrolet K20.

Brands matter. If you want to shop a specific Performance and Racing Products brand, we stock 25 different brands like Mr. Gasket, K&N, and Accel. 1978 Chevrolet K20 Performance and Racing Products start as low as $6.99!

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 2,166 extensive product reviews on 1978 Chevrolet K20 Performance and Racing Products. Some of the top-rated Performance and Racing Products products we carry are Distributor Cap And Rotor Kit with 4.0 stars and Differential Ring And Pinion with 4.2 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 1978 Chevrolet K20 below to get started!

Top-Rated Performance and Racing Products Brands For Your 1978 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 1978 Chevrolet K20 running right for years to come. In our inventory you’ll find brands like Mr. Gasket, K&N, Accel, and even more.

Popular Energy Suspension Performance and Racing Products

You’ll find popular Energy Suspension brand products across Performance Transmissions. All are waiting to get your 1978 Chevrolet K20 back on the road. Some of the top-rated Energy Suspension products in these categories are:
Motor Mount
from $38.99
(1)
Motor Mount
Performance Engine and Transmission Mounts

Top-Rated Mr. Gasket Performance and Racing Products


If Mr. Gasket are what you’re looking for, our inventory holds plenty. We stock Mr. Gasket brand Performance and Racing Products for your 1978 Chevrolet K20, and some of our most reviewed Mr. Gasket parts include:
Exhaust Gasket Set
from $19.99
(14)
Exhaust Gasket Set
Performance Exhaust Manifold Gaskets
Ultra Seal; Valve Cover Gasket Set
from $25.99
(7)
Ultra Seal; Valve Cover Gasket Set
Performance Engine Valve Cover Gasket Sets
Fuel Pump Block-Off Plate
from $13.99
(6)
Fuel Pump Block-Off Plate
Performance Fuel Pumps

FAQs for 1978 Chevrolet K20 Performance and Racing Products

What are the most purchased Performance and Racing Products for the 1978 Chevrolet K20?

Out of 315 Performance and Racing Products for the 1978 Chevrolet K20, the most popular in our inventory are:

What are the top-rated 1978 Chevrolet K20 Performance and Racing Products?

Top-rated Performance and Racing Products for your 1978 Chevrolet K20 based on customer reviews/ratings are:
Distributor Cap And Rotor Kit
from $41.99
(23)
Distributor Cap And Rotor Kit
“Worked well”
Differential Ring And Pinion
from $342.99
(23)
Differential Ring And Pinion
“Good product good price”
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
“Bought this distributor for my 350. Runs like a champ now, and is very responsive.”