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

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 2, 2026 if ordered today

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Estimated Ship Date: Feb 2, 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 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

PRW Fabricated Valve Covers 4035040

Valve Covers, Tall, Perimeter Bolt Mounting, Fabricated Aluminum, Silver Anodized, Oil Stacks, Chevy, Small Block, Pair

Part Number: PQX-4035040

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Sealed Power Intermediate Driveshafts 224-6146

Sealed Power Intermediate Driveshafts 224-6146

Oil Pump Intermediate Shaft, Chevy 3.3L, 3.8L, 4.3L, 4.4L, 283, 305, 307, 327, 350, 400, V6, V8, Each

Part Number: SLP-224-6146

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

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

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Cloyes Hex-A-Just Timing Sets 9-3146B

Timing Chain and Gear Set, Hex-A-Just, Double Roller, Billet Steel Sprockets, Chevy, 350, 5.7L, GM Race Block, Set

Part Number: CLO-9-3146B

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

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

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Cloyes Hex-A-Just Timing Sets 9-3100B

Timing Chain and Gear Set, Hex-A-Just, Double Roller, Billet Steel Sprockets, Chevy, Small Block, BBC Crank Snout, Set

Part Number: CLO-9-3100B

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Proform Stamped Steel Chevrolet Valve Covers 141-712

Valve Covers, Tall Height, Stamped Steel, Carbon Fiber Finish, Chevrolet Logo, Chevy, Small Block, Pair

Part Number: PRO-141-712

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

ACDelco V-Ribbed Accessory Belts 88934320

Accessory Belts, V-groove, 41.08 in. Length, for use on Acura®, BMW, Buick, Chevy, Chrysler, Dodge, Ford, GMC, Mercedes-Benz, Olds, Saab, Volvo, Each

Part Number: ADO-15405

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

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

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Proform GM Licensed Diecast Aluminum Chevrolet Valve Covers 141-120

Valve Covers, Tall, Die-Cast Aluminum, Orange Powdercoated, Bowtie Emblem, Chevy, Small Block, Pair

Part Number: PRO-141-120

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Sealed Power Stock Replacement Oil Pumps 224-4147

Oil Pump, Chevy, Pontiac, 153 L4/194/215/230/250 L6, Each

Part Number: SLP-224-4147

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Melling High-Pressure Oil Pump Springs 55049

Oil Pump Springs, 49 psi, Steel, Green, Pins, Chevy, Small Block, Kit

Part Number: MEL-55049

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Hastings Piston Ring Sets 139010

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

Part Number: HSN-139010

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

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 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Hamburger's Performance Billet Aluminum Remote Oil Filter Relocation Kits 3364

Oil Filter Relocation Kit, Remote, Billet Aluminum, Natural, 13/16 in.-16 Thread, 30.00 in. Hose Length, Buick, Chevy, GMC, Hummer, Olds, Pontiac, Kit

Part Number: HAM-3364

Not Yet Reviewed

Estimated Ship Date: Feb 26, 2026 if ordered today

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Estimated Ship Date: Feb 26, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M8542035

Piston Rings, Premium Ductile Ring Sets, 0.035 in. Oversize, 4.035 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M8542035

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

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 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Melling Performance PRO-Line Pushrods 501034

Pushrod, Chromoly, 5/16 in. Diameter, 8.000 in. Length, Ball Ends, Each

Part Number: MEL-501034

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

VEGE Remanufactured Long Block Crate Engines VC12

Crate Engine, Remanufactured, Long Block, Assembled, GM, 5.7L, Each

Part Number: VRE-VC12

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 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 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ATP Timing Covers 103120

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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VEGE Remanufactured Long Block Crate Engines VC11

Crate Engine, Remanufactured, Long Block, Avanti, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, 5.7L/350, Each

Part Number: VRE-VC11

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

Continental OE Technology Series V-belts 15591

Belt, Elite, V-Belt, 7/16 in. Width, 58.50 in. Length, Each

Part Number: CEL-15591

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

VEGE Remanufactured Long Block Crate Engines VC121P

Crate Engine, Remanufactured, Long Block, Chevrolet, GMC, Workhorse, 5.7L/350, Each

Part Number: VRE-VC121P

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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Estimated Ship Date: Feb 11, 2026 if ordered today