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

Continental OE Technology Series V-belts 15561

Belt, Elite, V-Belt, 7/16 in. Width, 55.50 in. Length, Each

Part Number: CEL-15561

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Continental OE Technology Series V-belts 15440

Belt, Elite, V-Belt, 7/16 in. Width, 43.50 in. Length, Each

Part Number: CEL-15440

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Cloyes Race Billet True Roller Timing Sets 9-3646TX9

Cloyes Race Billet True Roller Timing Sets 9-3646TX9

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

Part Number: CLO-9-3646TX9

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

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: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

COMP Cams Xtreme Energy Pro-Plasma Nitrided Camshafts 12-250-20

Camshaft, Hydraulic Flat Tappet, Advertised Duration 284/296, Lift .507/.510, Chevy, Small Block, Each

Part Number: CCA-12-250-20

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

ACDelco V-Ribbed Accessory Belts 88934328

Accessory Belts, V-Ribbed, V-groove, 0.410 in. Width, 44.08 in. Length, AMC, Buick, Chevy, Chrysler, Dodge, Ford, GMC, Jeep, Volkswagen, Volvo, Each

Part Number: ADO-15435

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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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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Dorman Valve Cover Grommets 42061

Valve Cover Grommet, PCV, Buick, Cadillac, Chevy, GMC, Jeep, Oldsmobile, Pontiac, Each

Part Number: RNB-42061

5.0 out of 5 stars ( 1 )

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Pioneer Performance Freeze Plugs PE-100-BR

Freeze Plug Kit, Brass, Chevy, Small Block, Kit

Part Number: PIO-PE100BR

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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Estimated Ship Date: Mar 10, 2026 if ordered today

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: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Mr. Gasket Alternator Brackets 4954

Bracket, Alternator, Steel, Chrome, Lower, Chevy, Small Block, Each

Part Number: MRG-4954

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Dorman Valve Cover Grommets 42056

PCV Valve Cover Grommet, Buick, Oldsmobile, Pontiac, Each

Part Number: RNB-42056

5.0 out of 5 stars ( 1 )

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Melling Valve Springs VSK46635

VALVE SPRING KIT

Part Number: MEL-VSK46635

Not Yet Reviewed

Estimated Ship Date: Mar 18, 2026 if ordered today

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Estimated Ship Date: Mar 18, 2026 if ordered today

Melling Engine Expansion Plug Kits MPE-104BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-104BR

Not Yet Reviewed

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Cloyes Hex-A-Just Timing Sets 9-3100A-10

Timing Chain and Gear Set, Hex-A-Just, Double Roller, -0.010 in., Billet Steel Sprockets, Chevy, Small Block, Set

Part Number: CLO-9-3100A-10

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

PRW Billet Rocker Arm Stud Girdles 1535002

Rocker Arm Stud Girdle, Solid Bar, Polylock, Aluminum, Natural, Chevrolet, Stock Heads, Kit

Part Number: PQX-1535002

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Cloyes Timing Camshaft Sprockets 2526

Camshaft Sprocket, Aluminum, 54-Tooth, Chevy, GMC, Oldsmobile, Pontiac, 230, 250, 292, Each

Part Number: CLO-2526

Not Yet Reviewed

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Proform Harmonic Balancer Covers 141-725

Harmonic Balancer Cover, Aluminum, Chrome, 6 3/4 in. Diameter, Degree Markings, Chevy, Small Block, Each

Part Number: PRO-141-725

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Pioneer Balancers DA-292

Harmonic Balancer, Internal Balance, 6.750 in. Diameter, Nodular Iron, Black, Chevy/GMC, Inline 6, Each

Part Number: PIO-DA-292

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Hastings Premium Ductile Ring Sets 2M8571030

Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 1/8 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M8571030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Pioneer Street Performance Balancers 872001

Harmonic Balancer, Street Performance, Internal Balance, Nodular Iron, Black, Chevy, Small Block, 4.3L V6

Part Number: PIO-872001

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Hastings Premium Ductile Ring Sets 2M5523035

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-2M5523035

Not Yet Reviewed

Estimated Ship Date: Mar 9, 2026 if ordered today

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Estimated Ship Date: Mar 9, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Sealed Power File-Fit Plasma-Moly Piston Rings R977135

5 out of 5 stars ( 1 )

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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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King HP-Series Rod Bearings CR 807HPN 030

Rod Bearings, HP-Series, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Large Journal, Chevy, Small Block, Set of 8

Part Number: KGB-CR807HPN030

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

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Estimated Ship Date: May 19, 2026 if ordered today

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 )

Estimated Ship Date: Today

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