1975 Chevrolet K20 Performance Engines

Essential 1975 Chevrolet K20 Performance Engines

Mr. Gasket – Timing Cover Seal (Part No.17)

Timing Cover Seal

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$30.19
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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Mr. Gasket – Bolt Water Pump (Part No.4998)

Bolt Water Pump

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$32.99
This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners to install the water pump on your small or big block Chevrolet with the long style water pump. Includes four 3/8 inch-16 x 2 inch bolts with four 3/8 inch AN washers. AN washers have no exposed shoulder which offers a professional appearance.

Product Features:
  • Chrome Plated
  • Grade 5
  • AN washers with no exposed shoulder for a professional appearance
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FEL-PRO Performance – Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set (Part No.1803)

Oil Pan Gasket Set: High-Temperature Rubber-Coated Fiber, 5 Piece Set

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$26.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
  • With steel core to provide ultimate excellent blowout resistance.
  • 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

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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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Edelbrock – Victor Jr. 23 Degree Intake Manifold Small-Block Chevy (Part No.2975)

Victor Jr. 23 Degree Intake Manifold Small-Block Chevy

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

High Performance 180 Degree Thermostat for Increased Flow

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

Performer-Link Adjustable True-Roller Timing Chain Set

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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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Mr. Gasket – Ultra Seal: Competition Screw-In Rocker Arm Studs (Part No.1075)

Ultra Seal: Competition Screw-In Rocker Arm Studs

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$94.99
Mr. Gasket competition screw-in rocker arm studs are manufactured from heat treated black oxide coated Grade 8 steel. Ideal for high performance street and race applications.

Product Features:
  • Black Oxide Coated Grade 8 Steel
  • Kit Contains 16 Studs
  • Easy To Install
  • Heat Treated Steel
  • Prevents Stud Flexing
  • Black Plated Finish
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FEL-PRO Performance – Engine Valve Cover Gasket Set (Part No.1605)

Engine Valve Cover Gasket Set

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$25.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:
  • Die cut silicone rubber gaskets conform to out-of-flat covers
  • Great for on-again/off-again situations
  • Not intended for use in emission controlled vehicles.
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B & M – Torque Converter, Holeshot 2000 (Part No.70417)

Torque Converter, Holeshot 2000

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$544.99
The Holeshot Converter is a very good choice for the typical street machine that is looking for better launch capability and more strength. With a furnace brazed turbine, new turbine hub and dual pattern drive lugs on some GM Holeshots.

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

Cylinder Head Dowel Pins

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$14.99
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 Series Retainer (Qty 16) (Part No.9721)

Performer Series Retainer (Qty 16)

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$95.99
Valve spring retainers for use OE cast iron heads. Superior quality heat-treated steel. Machined for strength with black oxide finish. Finish ensures rust and corrosion protection.

Product Features:
  • Valve Spring Retainers for Use OE Cast Iron Heads
  • Superior Quality Heat-Treated Steel
  • Machined for Strength with Black Oxide Finish
  • Finish Ensures Rust and Corrosion Protection
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FEL-PRO Performance – Cylinder Head Gasket: Steel Core Composite, Without Head Bolts (Part No.1047)

Cylinder Head Gasket: Steel Core Composite, Without Head Bolts

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$72.99
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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Competition Cams – CAMSHAFT, SBC 291 MUTHA THUMPR HYDRAULIC ROLLER 1 EA (Part No.12-601-8)

CAMSHAFT, SBC 291 MUTHA THUMPR HYDRAULIC ROLLER 1 EA

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

Performer Big-Block Chevy Oval Hydraulic Flat Tappet Cam

from

$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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Edelbrock – RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam (Part No.60759)

RPM Small-Block Chevy Cylinder Head SBC 70cc Hydraulic Flat Tappet Cam

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$1014.99
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 – 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

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$253.99
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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Competition Cams – Engine Valve Spring Kit (Part No.911-16)

Engine Valve Spring Kit

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

Pushrod Set for S/B Chevy

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

Pushrod Set for S/B Chevy

from

$189.99


Product Features:
  • Case-Hardened Tubing
  • Welded Ends
  • 5/16 in. Diameter
  • Use with or without Hardened Steel Guideplates
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FEL-PRO Performance – Engine Crankshaft Seal Kit (Part No.2918)

Engine Crankshaft Seal Kit

from

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

PERFORMANCE REAR MAIN SEAL SET

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$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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Edelbrock – Intake Manifold Gasket for 1985-1995, Chevy V6 200-229-262 (Part No.7209)

Intake Manifold Gasket for 1985-1995, Chevy V6 200-229-262

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$27.99
Edelbrock part #7209 Intake Gaskets for 1985-1995, Chevy V6 200-229-262 (3.8 and 4.3L) allow for optimum flow and performance. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. The new MP-

Product Features:
  • 1.28″x2.10″
  • Stock Port Style
  • .060″ Thick
  • Multi Piece Configuration
  • Composite Material
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Mr. Gasket – Intake Gasket (Part No.143)

Intake Gasket

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$42.49
Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. This is a low density material that conforms well to irregular surfaces and has very good crush resistance at high flange pressures. They provide excellent sealing and durability as the material is designed for sealing gasoline, oils, water and coolant in applications up to 350 degrees Fahrenheit. While die-cut for an excellent fit, they 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
  • Die-cut for an excellent fit
  • Can be trimmed if necessary for modified port applications
  • For OE replacement, high performance street, drag race and oval track use
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Edelbrock – Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet (Part No.2103)

Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet

from

$334.99


Product Features:
  • Designed for Optimum Torque and Acceleration
  • Maximum Performance From Idle through Mid-Range
  • Matched to Edelbrock Performer Intakes
  • Includes Hydraulic Lifters and Assembly Lube
  • Major Improvement in Throttle Response and Torque
  • Use For Daily Drivers/Trucks/Vans/RVs/4x4s
  • Take The Guesswork Out Of Camshaft Selection
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Competition Cams – Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454 (Part No.CL11-602-4)

Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit for Chevrolet Big Block 396-454

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$1322.99
BIG BLOCK CHEVY HYDRAULIC CAM AND LIFTER KIT – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Product Features:
  • Cam and lifter kit for Big Block Chevy engines
  • CL-Kit includes cam, lifters, assembly lube, instructions and decals
  • HYDRAULIC – Big Mutha’ Thumpr: Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
  • 295/312 Advertised Duration, 243/257 Duration @ .050″, .522″/.507″ Lift, 107 Lobe Separation
  • Valve spring upgrade required
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Spectre – Water Neck; Chevy Late Model (Part No.4730)

Water Neck; Chevy Late Model

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$23.79
Spectre’s Chevrolet late model water neck offers the normal angled water neck and a 1/2 inch NPT threaded hole for a by-pass hose. This water neck has a chrome plated finish for a lasting look great and includes the bolts.

Product Features:
  • Fits Chevy engines
  • Includes a 1/2 inch NPT threaded hole for by-pass hose
  • Includes bolts
  • Chrome plated
  • Easy to install
  • O-ring/gasket not included
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Mr. Gasket – Water Neck (Part No.9141G)

Water Neck

from

$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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1975 Chevrolet K20 Performance Engines

Maybe you’re in the middle of a full rebuild of that 1975 Chevrolet K20. Maybe you just need a couple of Performance Engines. Either way, Advance Auto Parts has 85 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 1975 Chevrolet K20 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 1975 Chevrolet K20. 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 1975 Chevrolet K20, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 174 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 1975 Chevrolet K20 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 1975 Chevrolet K20 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1975 Chevrolet K20 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 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 1975 Chevrolet K20, our most popular B & M Performance Engines include:
Tork Master 2400
from $339.99
(1)
Tork Master 2400
Performance Torque Converters
Tork Master 3000
from $499.99
(1)
Tork Master 3000
Performance Torque Converters

Top 1975 Chevrolet K20 Performance Engines from Mr. Gasket

Mr. Gasket products are another trusted brand when it comes to Performance Engines for your 1975 Chevrolet K20. Popular Mr. Gasket parts include:
High Performance 180 Degree Thermostat for Increased Flow
from $26.99
(20)
High Performance 180 Degree Thermostat for Increased Flow
Performance Engine Coolant Thermostats

FAQs for 1975 Chevrolet K20 Performance Engines

What are the most purchased Performance Engines for the 1975 Chevrolet K20?

Out of 85 Performance Engines for the 1975 Chevrolet K20, the most popular in our inventory are:
Performer EPS Intake Manifold for 1955-86 Small-Block Chevy
from $195.99
(7)
Performer EPS Intake Manifold for 1955-86 Small-Block Chevy
Performance Intake Manifolds
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
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 1975 Chevrolet K20 Performance Engines?

Top-rated Performance Engines for your 1975 Chevrolet K20 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”
Action Plus Water Pumps
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”
Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet
from $334.99
(1)
Performer-Plus Camshaft Kit for 1957-86 Small-Block Chevrolet
“put this cam and lifter kit in my 412 inch small block chevy. works well with patriot alum. heads and edelbrock duel quad intake. all this is running ”