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

Sealed Power Cam Bearings C2100M

Cam Bearings, Steel Backed Babbitt, Chevy, Set

Part Number: SLP-C2100M

5.0 out of 5 stars ( 1 )

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King HP-Series Main Bearings MB 557HP 001

Main Bearings, HP-Series, .001in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP001

5.0 out of 5 stars ( 2 )

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Dorman Oil Pans 264-103

Oil Pan, OEM Type, Steel, Black, GM/Chevy, 5.0/5.7L, Each

Part Number: RNB-264-103

5.0 out of 5 stars ( 4 )

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Hastings Premium Ductile Ring Sets 2M5523060

Piston Rings, Premium Ductile Ring Sets, 0.060 in. Oversize, 4.059 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5523060

5.0 out of 5 stars ( 1 )

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Clevite H-Series Main Bearings MS-909H-21

MAIN BEARING SET

Part Number: CLE-MS909H21

Not Yet Reviewed

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Powermaster Alternator Brackets 886

Powermaster Alternator Brackets 886

Alternator Bracket, Billet Aluminum, Polished, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: PWM-886

5.0 out of 5 stars ( 1 )

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Cloyes Street Billet True Roller Timing Sets 9-3546TX9

Timing Chain and Gears, Double Roller, Billet Steel Sprockets, Chevy SBC, Dart, Race Blocks, Rocket, Set

Part Number: CLO-9-3546TX9

5.0 out of 5 stars ( 2 )

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King HP-Series Main Bearings MB 557HP 020

Main Bearings, HP-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP020

Not Yet Reviewed

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Sealed Power MA Series Main Bearings 4124MA

Main Bearing Set;

Part Number: SLP-4124MA

3.0 out of 5 stars ( 1 )

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King XP-Series Main Bearings MB 557XP 020

Main Bearing, XP-Series, Copper/Lead/Nickel, 0.020 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB557XP020

1.0 out of 5 stars ( 1 )

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Cloyes Street Billet True Roller Timing Sets 9-3500WX9

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

Part Number: CLO-9-3500WX9

5.0 out of 5 stars ( 1 )

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Perma-Cool Oil Filter Relocation Kits 10695

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

Part Number: PRM-10695

2.6 out of 5 stars ( 5 )

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King HP-Series Rod Bearings CR 807HPN010X

Rod Bearings, HP-Series, .010 in. Narrow, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN010X

5.0 out of 5 stars ( 1 )

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Melling Timing Gears 2528S

Timing Gears, Aluminum Cam Sprocket, Steel Crank Sprocket, Chevy, GMC, 250, 292, Set

Part Number: MEL-2528S

5.0 out of 5 stars ( 1 )

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Milodon Oil Filter Adapters 21565

Adapter, Oil Filter Bypass, Bolt-On, Chevy, Aluminum, Natural, 1/2 in. NPT Inlet/Outlet, Each

Part Number: MIL-21565

3.6 out of 5 stars ( 5 )

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Hastings Premium Ductile Ring Sets 2C139030

Piston Rings, Premium Ductile Ring Sets, Chrome, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-cylinder, Set

Part Number: HSN-2C139030

Not Yet Reviewed

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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: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Mahle Original Premium Piston Ring Sets 40564CP.020

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

Part Number: MAH-40564CP020

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Sealed Power Chrome Piston Ring Sets E-251KC

Piston Rings, Chrome, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-251KC

Not Yet Reviewed

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King HP-Series Rod Bearings CR 807HPND 001

Rod Bearings, HP-Series, Silicon Aluminum, 0.001 in. Crankshaft Undersize, Large Journal, Chevy, Set of 8

Part Number: KGB-CR807HPND001

Not Yet Reviewed

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Hastings Premium Ductile Ring Sets 2M5523045

Piston Rings, Premium Ductile Ring Sets, 0.045 in. Oversize, 4.045 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5523045

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

Pioneer Timing Covers 500350S

Timing Cover, Steel, Natural, Chevrolet, Small Block, Each

Part Number: PIO-500350S

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ATP Timing Covers 103120

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Hastings Piston Ring Sets 2M139010

Piston Rings, Plasma-moly, 4.010 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-2M139010

Not Yet Reviewed

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King HP-Series Rod Bearings CR 807HPN 011

Rod Bearings, HP-Series, .011 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN011

Not Yet Reviewed

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Agility Auto Parts Oil Pans 3310022

Oil Pan, Stock Style, Wet Sump, Steel, Black, 2-piece Rear Main Seal, Right Side Dipstick Location, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Each

Part Number: RDR-3310022

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today