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

Mahle Original Aftermarket Replacement Pistons 224-3547.020

Piston - GM 5.7L (350) V8 FLATTOP COAT (020) W/P aftermarket version

Part Number: MAH-2243547020

Not Yet Reviewed

Estimated Ship Date: Feb 3, 2026 if ordered today

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Estimated Ship Date: Feb 3, 2026 if ordered today

Cloyes Street Billet True Roller Timing Sets 9-3146AZ-5

Cloyes Street Billet True Roller Timing Sets 9-3146AZ-5

Timing Set

Part Number: CLO-9-3146AZ-5

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

Melling Valve Springs VTSS100

VALVE TRAIN SET UP SPRING

Part Number: MEL-VTSS100

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Melling Stock Replacement Camshafts CCS-9

CAMSHAFT-ENGINE

Part Number: MEL-CCS-9

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

Cloyes Hex-A-Just Z-Racing Timing Sets 9-3146AZ

Timing Chain and Gear Set, Z-Racing Hex-A-Just, Double Roller, Billet Steel Sprockets, Chevy, 350, 5.7L, Set

Part Number: CLO-9-3146AZ

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

Hastings Premium Ductile Ring Sets 2M5538030

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

Part Number: HSN-2M5538030

1.0 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

Cloyes Race Billet True Z-Racing Roller Timing Sets 9-3646TX3Z

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

Part Number: CLO-9-3646TX3Z

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 Fabricated Valve Covers 4035011

Valve Covers, Tall, Perimeter Bolt Mounting, Fabricated Aluminum, Polished, Pitched Top, Chevy, Small Block, Pair

Part Number: PQX-4035011

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Dorman Oil Pump Bushings 90460

Bushing, Oil Pump Nylon Shaft Guide, Chevy, Each

Part Number: RNB-90460

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Melling M-Select Class 4 Camshafts 22450

Camshaft, Mechanical Flat Tappet, .512 in./.536 in. Lift, Chevy, Small Block, Each

Part Number: MEL-22450

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M5538060

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

Part Number: HSN-2M5538060

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Hastings Steel Series Performance Ring Sets SM5587035

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

Part Number: HSN-SM5587035

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 Camshafts 22401

CAMSHAFT-ENGINE

Part Number: MEL-22401

5.0 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

Melling M-Select Class 4 Camshafts 22460

CAMSHAFT-ENGINE

Part Number: MEL-22460

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Cloyes Race Billet True Z-Racing Roller Timing Sets 9-3600TX3Z

Timing Set; Z-Racing Roller Timing Set; Incl. Billet Cam Sprocket; 3 Keyway Billet Crank Sprocket;

Part Number: CLO-9-3600TX3Z

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

Hastings Premium Ductile Ring Sets 2M8543065

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

Part Number: HSN-2M8543065

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Hamburger's Performance Oil Filter Bypass Adapters 3325

Oil Filter Bypass Adapter, Aluminum, Clear, Anodized, Chevy, V-8, Each

Part Number: HAM-3325

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

Melling M-Select Class 2 Camshafts 22235

Camshaft, Hydraulic Flat Tappet, 298/298 Advertised Duration, .465/.465 in. Lift, Chevy, Small Block, Each

Part Number: MEL-22235

Not Yet Reviewed

Estimated Ship Date: Jan 27, 2026 if ordered today

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Estimated Ship Date: Jan 27, 2026 if ordered today

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

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 2M8571

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

Part Number: HSN-2M8571

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

Mr. Gasket Engine Dress-Up Kits 9834

Engine Dress-Up, Chrome, 2 Valve Covers, Gaskets, Dipstick, Tube, Push-On Clamps, Chevy, Small Block, Kit

Part Number: MRG-9834

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Cloyes Street Billet True Roller Timing Sets 9-3600BTX3-5

Timing Set

Part Number: CLO-9-3600BTX3-5

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Cloyes Race Billet True Roller Timing Sets 9-3646BTX3-5

Timing Chain and Gear Set, -0.005 in. Length, Double Roller, Billet Steel Sprockets, Dart/GM, Rocket Block, SBC w/BBC Snout, Kit

Part Number: CLO-9-3646BTX3-5

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

Melling M-Select Class 1 Camshafts 22108

Camshaft, Hydraulic Flat Tappet, 260/280 Advertised Duration, .367/.398 in. Lift, Chevy, Small Block, Each

Part Number: MEL-22108

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Cloyes Street Billet True Roller Timing Sets 9-3600TX3-10

Timing Set

Part Number: CLO-9-3600TX3-10

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today