1981 Chevrolet K20 Suburban Proform Parts

Choose your Submodel for your 1981 Chevrolet K20 Suburban


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Proform
  • Alternator-100 AMP; GM Style 1-Wire Style; Natural Finish; 100% New
  • 100 AMP; Style 1-Wire Style; Natural Finish; 100% New
  • Alternator; 100 AMP Model; GM 10si 1 Wire Style with Internal Regulator; External Fan Style; Machined Pulley; Natural Finish; 100% New; Products; Sold Individually
  • Product Attributes:
    • Category: Alternators
    • Pulley Diameter: 2 1/2 Inch
    • Feature/Benefit: A Manufacturing Break-through Has Enabled Proform To Offer 100% New Alternators With The Same Affordability As Others' Re-built Models!
    • Wire Type: 1-wire
    • Case Style: 10si Style
    • Amperage Output: 100 Amp
  • Can you tell the difference? Most alternators look nearly the same, and that's why what's on the inside is so critical. Reliability starts with how it's made. Choosing PROFORM means choosing alternators with components produced by highly specialized machines, assembled by highly trained personnel using dedicated jigs and equipment, with everything 100% new for maximum longevity and optimum performance. After assembly each alternator is individually tested at the factory. Finally, it's boxed with a quality assurance graph that documents the specific unit's output performance. We do the testing, not you! And PROFORM proves it!

Additional Fitment Information:
Vehicle Block CC Engine Sub Model CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L Deluxe 350

Proform
  • Wedge-Locking Header Bolts; Hex Head; 3/8 dia. X 1in Black Oxide ; 12 Pcs
  • Hex Head; 3/8 dia. X 1in Black Oxide
  • Engine Header Bolts; Wedge-Locking Technology; Hex Head Type; 3/8-16 Thread X 1 Inch Long; Black Oxide Finish; 12 Pcs in kit; Fits GM V6, SB 265-400, Buick, Olds, Pontiac 79 and earlier, Mopar BB 383-440 exc 413, AMC V8's w 3/8in bolts
  • Product Attributes:
    • Diameter: 3/8-in.
    • Category: Header Bolts
    • Feature/Benefit: Wedge-locking Technology Eliminates Constantly Re-tightening Exhaust Collector Bolts; Blocks Bolt-loosening Rotation Caused By Vehicle Vibrations.
    • Length: 1 Inch
    • Applications: Fits Gm V6, Sb 265-400, Buick, Olds, Pontiac 79 And Earlier, Mopar Bb 383-440 Exc 413, Amc V8's W 3/8in Bolts
    • Part Type: Header Bolts
  • PROFORM Wedge-Locking Header Bolts ELIMINATE the need to constantly re-tighten collector bolts, and without the need for clips, pins, racing-wire, chemicals or gunk. The secret is in the Wedge-Locking Washer's super-hardened external teeth that "bite" into the bottom of the bolt head and the top flange surface. Vibrations that normally cause other bolts to loosen, are blocked by the wedge-locking action that uses tension, instead of friction to stay snug. In fact, contact with oil actually facilitates the effect. Installs/uninstalls with a normal wrench, lubricate, and then reuse. Each set comes with twelve Hex Head, Grade 8 (12.9) steel bolts (3/8"-16 thread, 1" long) with a black oxide finish, and pre-assembled Wedge-Locking Washers.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • High-Torque Starter; Gear Reduction Type; 1.4KW; Fits Chevy V8-V6 Engines
  • High-Torque Starter; Gear Reduction Type; 1.4KW; Compression Ratio:11 : 1; Finish:Natural; Flywheel Tooth Number:153 and 168-Tooth; Gear Reduction Ratio:3.75:1; Material:Aluminum/Steel; Mounting Plate:Straight Bolt Mounting Plate
  • High-Torque Mini Starter; Gear Reduction Type; 1.4KW; Fits All Chevy V8 Engines; Billet Aluminum Mount; For 11.1:1 Compression Ratio Engines; 100% New Components; Offset Design for More Oil Pan Clearance; Black and Silver Finish; Sold Each
  • Product Attributes:
    • Rotation: Standard
    • Gear Reduction Ratio: 3.75:1
    • Category: Starters
    • Power Output: 1.4 Kw
    • Feature/Benefit: High-torque, Gear-reduction Design.
    • Applications: Chevy Small Block Engines, Chevy Big Block Engines And Chevy V6 Engines
    • Compression Ratio: 11 : 1
    • Mounting Plate: Straight Bolt Mounting Plate
    • Part Type: Starter Motor
    • Flywheel Tooth Number: 153 & 168-tooth
    • Make: Chevrolet
  • High-torque, gear-reduction design. 100% NEW, not rebuilt. Offset design results in more clearance between the oil pan and the starter, and can be rotated for additional chassis clearance. The high-torque, high-output motor spins the engine over faster than stock starters, delivering 40-50% more cranking power. 3.75-to-1 sealed gear-reduction drive and full ball bearing construction. Includes shims to set pinion-gear engagement (when necessary). Approved by all leading sanctioning organizations. Fits all Chevy V6 and small and big block V 8 engines using 153 or 168 tooth flywheels. Heavy-duty PROFORM P/N 66258 weighs 1-1/2 lbs. more and is 1" longer than P/N 66256.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • Electric Engine Water Pump; Aluminum; Blue Powder Coat; Fits SB Chevy Engines
  • Electric Engine Water Pump; Aluminum;Fits SB Chevy Engines; Finish:Blue
  • Electric Engine Water Pump; Fits Small Block Chevy Engines; Made From Die Cast Aluminum; Body Has Blue Finish and Motor Has Black Finish; Flows 35 GPM; Billet 1.0 Inch NPT to 1-3/4 Inch Hose Fitting Included; Sold Individually
  • Product Attributes:
    • Rotation: Standard
    • Category: Water Pumps
    • Feature/Benefit: Affordable Electric Water Pumps Eliminate Unnecessary Weight And Impeller Drag Experienced At High Rpm, Pumps Up To 35+ Gallons Of Water Per Minute, And Delivers The Cooling That Can Make The Difference Between A Win And Second Place!
    • Length: 6.5 Inch
    • Applications: Chevy Small Block Engines
    • Engine: Chevy Sb Gen 1
    • Flow Rate: 35 Gpm
    • Part Type: Water Pump
    • Pump Flow: 35 Gpm
    • Condition: New
    • Make: Chevrolet
  • Ever consider going electric? PROFORM's affordable electric water pumps eliminate unnecessary weight and impeller drag experienced at high RPM, pumps up to 35+ gallons of water per minute, and delivers the cooling that can make the difference between a win and second place! Durable but light-weight die-cast aluminum, epoxy powder coated for corrosion resistance in the color of your choice. Race or street. Comes with mating weather-tight connector. Draws 6 amps. Billet fitting (1in pipe to 1 3/in hose) included.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • High-Torque Starter; Gear Reduction Type; 2.2KW; Fits Chevy V8-V6 Engines
  • High-Torque Starter; Gear Reduction Type; 2.2KW; Compression Ratio:15 : 1; Finish:Natural; Flywheel Tooth Number:153 and 168-Tooth; Gear Reduction Ratio:3.75:1; Material:Aluminum/Steel; Mounting Plate:Straight Bolt Mounting Plate
  • High-Torque Mini Starter; Gear Reduction Type; 2.2KW; Fits All Chevy V8-V6 Engines; Billet Aluminum Mount; For 15.1:1 Compression Ratio Engines; 100% New Components; Offset Design for More Oil Pan Clearance; Sold Each
  • Product Attributes:
    • Rotation: Standard
    • Gear Reduction Ratio: 3.75:1
    • Category: Starters
    • Power Output: 2.2 Kilo Watts
    • Feature/Benefit: High-torque, Gear-reduction Design.
    • Applications: Chevy V6 Engines, Chevy Small Block Engines And Chevy Big Block Engines
    • Compression Ratio: 15 : 1
    • Mounting Plate: Straight Bolt Mounting Plate
    • Part Type: Starter Motor
    • Flywheel Tooth Number: 153 & 168-tooth
    • Make: Chevrolet
  • High-torque, gear-reduction design. 100% NEW, not rebuilt. Offset design results in more clearance between the oil pan and the starter, and can be rotated for additional chassis clearance. The high-torque, high-output motor spins the engine over faster than stock starters, delivering 40-50% more cranking power. 3.75-to-1 sealed gear-reduction drive and full ball bearing construction. Includes shims to set pinion-gear engagement (when necessary). Approved by all leading sanctioning organizations.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • Engine Water Pump; Mechanical Short Style; High Flow Model; Satin; SB Chevy
  • Mechanical Short Style; High Flow Model;SB Chevy; Material:Aluminum; Finish:Satin
  • Engine Water Pump; Fits Small Block Chevy Engines; High-Flow Model; Mechanical Type; Short Style Pump; Made from High-Quality Aluminum; Satin Finish; Heavy-Duty Ball Bearings; Sold Each
  • Product Attributes:
    • Rotation: Standard
    • Category: Mech. Water Pump
    • Feature/Benefit: Lightweight Aluminum
    • Length: Short
    • Applications: Chevy Small Block Engines
    • Flow Rate: 25 Gpm
    • Part Type: Water Pump
    • Tool Type: Piston Installation Tools
    • Make: Chevrolet
  • PROFORM's new high flow mechanical water pumps feature heavy duty ball bearings for up to 40% more coolant flow giving you real performance value for your dollar. Aluminum construction reduces front end weight!

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • Engine Water Pump; Mechanical Long Style; High Flow Model; Polished; SB Chevy
  • Mechanical Long Style; High Flow Model;SB Chevy; Finish:Polished
  • Engine Water Pump; Fits Small Block Chevy Engines; High-Flow Model; Mechanical Type; Long Style Pump; Made from High-Quality Aluminum; Polished Finish; Heavy-Duty Ball Bearings; Sold Each
  • Product Attributes:
    • Rotation: Standard
    • Category: Water Pumps
    • Feature/Benefit: High Flow Mechanical Water Pump.
    • Length: Long
    • Applications: Chevy Small Block Engines
    • Flow Rate: 25 Gpm
    • Part Type: Water Pump
    • Pump Flow: 25 Gpm
    • Condition: New
    • Make: Chevrolet
  • PROFORM's new high flow mechanical water pumps feature heavy duty ball bearings for up to 40% more coolant flow giving you real performance value for your dollar.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • Engine Water Pump; Mechanical Long Style; High Flow Model; Satin; SB Chevy
  • Mechanical Long Style; High Flow Model;SB Chevy; Finish:Satin
  • Engine Water Pump; Fits Small Block Chevy Engines; High-Flow Model; Mechanical Type; Long Style Pump; Made from High-Quality Aluminum; Satin Finish; Heavy-Duty Ball Bearings; Sold Each
  • Product Attributes:
    • Rotation: Standard
    • Category: Water Pumps
    • Feature/Benefit: High Flow Mechanical Water Pump.
    • Length: Long
    • Applications: Chevy Small Block Engines
    • Flow Rate: 25 Gpm
    • Part Type: Water Pump
    • Pump Flow: 25 Gpm
    • Condition: New
    • Make: Chevrolet
  • PROFORM's new high flow mechanical water pumps feature heavy duty ball bearings for up to 40% more coolant flow giving you real performance value for your dollar.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • High-Torque Starter; Gear Reduction Type; High Compression; Chevy V8; 168 Tooth
  • High-Torque Starter; High Compression; Compression Ratio:14 : 1; Finish:Natural; Flywheel Tooth Number:168-Tooth; Gear Reduction Ratio:4.41:1; Material:Aluminum/Steel; Mounting Plate:Staggered Bolt Mounting Plate; Power Output:1.9 Kilo Watts
  • High-Torque Mini Starter; Gear Reduction Type; High Compression Racing Staggered Style; Fits All Chevy V8 Engines with 168 Tooth Flywheel; Staggered Mount; For 14:1 Compression Ratio; 100% New; Offset For Pan Clearance; Natural Finish
  • Product Attributes:
    • Rotation: Standard
    • Gear Reduction Ratio: 4.41:1
    • Category: Starters
    • Power Output: 1.9 Kilo Watts
    • Feature/Benefit: For Engines With Monster Cubic Inches Or Compression Ratios, These 100% New Starters Challenge The Specifications, Durability, And Reliability Of Anything On The Market.
    • Applications: Chevy Small Block Engines And Chevy Big Block Engines
    • Compression Ratio: 14 : 1
    • Mounting Plate: Staggered Bolt Mounting Plate
    • Part Type: Starter Motor
    • Flywheel Tooth Number: 168-tooth
    • Make: Chevrolet
  • For engines with monster cubic inches or compression ratios, these 100% NEW starters challenge the specifications, durability, and reliability of anything on the market. Built from scratch with all-new components, the torque rating is a healthy 4.41:1 gear reduction, capable of cranking engines up to a whopping 14:1 compression. Comes in the NEW Race Box Packaging! Fits Chevy small and big block engines. Fits Chevy V8.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350

Proform
  • Engine Valve Covers; Stamped Steel; Short; Chrome; with Bowtie Logo; Fits SB Chevy
  • Short; Fits SB Chevy; Mounting Bolt(s) Included:No; Emblem:CHEVROLET and Bowtie Emblem; Valve Cover Bolt Pattern:Perimeter Bolt; Valve Cover Height:Stock; Finish:Chrome; Material:Stamped Steel
  • Engine Valve Cover; Stamped Steel Short Style With Baffles; Chrome Plated Finish With Chevy and Bowtie Logos; Fits 1955 to 1986 262-400 Small Block Chevy Engines; Made From Quality Material; Officially Licensed GM Product; Sold As Pair
  • Product Attributes:
    • Emblem: Chevrolet & Bowtie Emblem
    • PCV Grommet Included: Yes
    • Feature/Benefit: Engine Valve Covers Feature The Inchchevrolet Inch And Inchbowtie Inch Logos.
    • Engine: Chevy Sb Gen 1
    • Part Type: Valve Cover
    • Breather Grommet Included: Yes
    • Make: Chevrolet
    • Valve Cover Bolt Pattern: Perimeter Bolt
    • Valve Cover Height: Stock
    • Baffeled: Yes
    • Category: Valve Covers
    • Applications: Chevy Small Block 262 To 400 Engines 1958 To 1986
    • Emblem Style: Embossed Emblem
    • Mounting Bolt(s) Included: No
  • These engine valve covers are manufactured from high quality stamped steel material. They are a short style valve cover and feature oil breather baffles. The valve covers have a great looking and long lasting chrome plated finish that also includes the "Chevrolet" and "Bowtie" logos. Designed to fit 1955 to 1986 262-400 Small Block Chevy engines. This an officially licensed GM Performance Parts product. Sold as one pair. Backed by a limited 30 day factory warranty.

Additional Fitment Information:
Vehicle Block CC Engine CID
1981 - Chevrolet K20 Suburban V - 8 Cyl 5.7L 350
Showing 1 - 10 of 44 products

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