1981 CHEVROLET K20 Engines & Components

Oil Filter, Chrome, 13/16-16 in. UNF Thread, 5.250 in. High, Each

Part Number: MOR-22320

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

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

Part Number: PRO-141-728

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Timing Chain and Gear Set, Link Belt, Iron/Steel Sprockets, Chevy, Small Block, Set

Part Number: CLO-C-3001K

4.63 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Billet Timing Pointer Small Block Chevy, Fits 7 in. Balancer, Each

Part Number: MSD-89882

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Bushing, Cam, 0 Degree, Each

Part Number: CLO-P9005

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Main Bearings, .030 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M30

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Timing Chain and Gear Set, OEM, Link Belt, Checker, Chevy, Excaliber, GMC, Pontiac, V8, Set

Part Number: MEL-3-499S

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Crankshaft Key, Short, 4 Degree Offset, Chevy, Ford, Pontiac, Chrysler, Each

Part Number: MRG-988G

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Timing Cover, 1-Piece, Natural, Chevy, Small Block, Each

Part Number: ATP-103120

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI030

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Adapter, Oil Filter Bypass, Spin-On, Aluminum, Natural, 13/16-16 in. Thread, 1/2 in. NPT Inlet/Outlet, Each

Part Number: TRD-1022

4.09 out of 5 stars ( 11 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Harmonic Balancer Bolt, Steel, Black, Hex Head, Chevy, Small Block, Each

Part Number: MRG-7845

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Piston Rings, Cast Iron, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-251X20

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Oil Filter, Extended Life, Canister, 13/16 in.-16 Thread, Each

Part Number: CHC-30-1218

4.76 out of 5 stars ( 55 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Alternator Bracket, Adjusting Arm, Driver Side Upper, Steel, Black, Chevy, Pontiac, 4.3, 5.0, 5.7L, Each

Part Number: OER-14081227

4.38 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Piston Rings, Phosphate Coated, 4.039 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139040

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Crankshaft Key, Short, Chevy, Each 0.750" x 0.188"

Part Number: MRG-984G

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Adapter, Oil Filter, Sandwich, Aluminum, Natural, 13/16-16 in. Thread, 1/2 in. NPT Inlet/Outlet, Each

Part Number: TRD-1322

4.21 out of 5 stars ( 14 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Piston Rings, Piston Ring Sets, Phosphate Coated, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-139S030

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Oil Dipstick

Part Number: CTR-20-842

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Cam Button Spacer, Steel, Roller, Chevy, Big/Small Block, Each

Part Number: CLO-9-200

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Valve Cover Hold-Down Tabs, Steel, Chrome, Not for Centerbolt Covers, Chevy, V6, Small Block V8, Set of 4

Part Number: EDL-4404

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Timing Chain and Gear Set, Heavy Duty, Double Roller, Iron/Billet Steel Sprockets, Chevy, V6/V8, Set

Part Number: CLO-C-3023XSP

Not Yet Reviewed

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Main Bearing Set;

Part Number: SLP-4663MA10

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air

Camshaft Wear Plate, 0.150 in. Thick, Bronze, Chevy, Chrysler, Each

Part Number: CLO-9-220B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/23/2026 if shipped by air