1981 CHEVROLET K20 Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options

Hastings Claimer Series Performance Piston Ring Sets CM5532020

Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-CM5532020

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Hastings Steel Series Performance Ring Sets SM5587030

Piston Rings, Steel Series Performance Ring Sets, 0.030 in. Oversize, 4.030 in. Bore, Plasma-moly, 0.043 in., 0.043 in., 3.0mm, L8, V8, Set of 8

Part Number: HSN-SM5587030

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Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Cloyes Race Billet True Roller Timing Sets 9-3600TX9-10

Cloyes Race Billet True Roller Timing Sets 9-3600TX9-10

Timing Set; Original Billet True Roller Timing Set; 0.010 in Reduced Center Distance; Incl. Cam Sprocket; 9 Ke

Part Number: CLO-9-3600TX9-10

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Mr. Gasket Cam Locking Plate and Bolt Kits 948G

Camshaft Bolt and Lock Plate, Steel, Black Oxide, Chevy, Kit

Part Number: MRG-948G

5.0 out of 5 stars ( 1 )

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PRW Billet Steel Main Caps 1735003

Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Small Block, Set of 3

Part Number: PQX-1735003

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Hastings Piston Ring Sets 139S

Piston Rings, Piston Ring Sets, Phosphate Coated, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-139S

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PRW Fabricated Valve Covers 4035000

Valve Covers, Tall, Perimeter Bolt Mounting, Fabricated Aluminum, Silver Anodized, Vent Holes, Chevy, Small Block, Pair

Part Number: PQX-4035000

4.5 out of 5 stars ( 2 )

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Sealed Power CP-Series Rod Bearings 8-2555CP 1

Rod Bearings, CP-Series, Tri Metal, 0.001 in. Crankshaft Undersize, Chevy, Small Block, Set of 8

Part Number: SLP-8-2555CP1

4.33 out of 5 stars ( 3 )

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Proform Harmonic Balancer Covers 66518CC

Harmonic Balancer Cover, Aluminum, Chrome, 8 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-66518CC

4.0 out of 5 stars ( 3 )

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PRW Billet Rocker Arm Stud Girdles 1535000

Rocker Arm Stud Girdle, Clamp-On, Polylock, Aluminum, Natural, Chevrolet, Stock Heads, Kit

Part Number: PQX-1535000

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Melling High-Pressure Oil Pump Springs 55058

Oil Pump Springs, 58 psi, Steel, Yellow, Pins, Chevy, Small Block, Kit

Part Number: MEL-55058

3.5 out of 5 stars ( 4 )

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Cloyes Quick Button Two-Piece Timing Covers 9-227

Timing Cover, 2-Piece, Adjustable Cam Button, Aluminum, Chevy, Small Block with Big Block Cam and/or Crank Snout

Part Number: CLO-9-227

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Perma-Cool Oil Filter Relocation Kits 10795

Oil Filter Relocation Kit, Dual Filter, 96 in. Length Hoses, Kit

Part Number: PRM-10795

3.0 out of 5 stars ( 2 )

Estimated Ship Date: May 20, 2026 if ordered today

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Estimated Ship Date: May 20, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M139S

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-2M139S

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Mr. Gasket Engine Dress-Up Kits 9834BP

KIT, DRESS-UP SB CHEV FLAT BLK

Part Number: MRG-9834BP

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Continental OE Technology Series V-belts 15530

Belt, Elite, V-Belt, 7/16 in. Width, 52.50 in. Length, Each

Part Number: CEL-15530

5.0 out of 5 stars ( 3 )

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PRW Pro Series Billet Aluminum Rocker Arms 0335005

ROCKER ARMS, 6061 BILLET ALUM, CHEV 262-400 1955-86, 1.6 x 3/8", self-align

Part Number: PQX-0335005

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Cloyes Race Billet True Z-Racing Roller Timing Sets 9-3646TX9Z

Timing Chain and Gear Set, Double Roller, Billet Sprockets, Chevy SBC, Race Blocks, Rocket, Set

Part Number: CLO-9-3646TX9Z

Not Yet Reviewed

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PRW Pedestal-Shaft Rocker Arms 3535035

Rocker Arms, Pedestal-Shaft Style, Full Roller, Aluminum, 1.50 Ratio, Brodix Track 1 Heads, Kit

Part Number: PQX-3535035

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

PRW Pedestal-Shaft Rocker Arms 3535033

Rocker Arms, Pedestal-Shaft Style, Full Roller, Aluminum, 1.60 Ratio, AFR Heads, Kit

Part Number: PQX-3535033

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Proform Chrome Engine Oil Dipstick Kits 141-551

Dipstick with Tube, Engine, Steel, Chrome, Classic Hook Handle, Passenger Side, GM/Chevy, Small Block, Each

Part Number: PRO-141-551

2.33 out of 5 stars ( 3 )

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Sealed Power MA Series Main Bearings 4663MA 20

Main Bearing Set;

Part Number: SLP-4663MA20

5.0 out of 5 stars ( 1 )

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Mahle Original Standard Piston Ring Sets 50564CP.020

Piston Rings, Standard Piston Ring Sets, Cast Iron, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: MAH-50564CP020

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ACDelco V-Ribbed Accessory Belts 88934343

Accessory Belt, V-groove, 0.410 in. Width, 48.00 in. Length, Buick, Checker, Chevy, Chrysler, Ford, Pontiac

Part Number: ADO-15480

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King HP-Series Main Bearings MB 557HP 011

Main Bearings, HP-Series, Silicon Aluminum, 0.011 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP011

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Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today