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

Sealed Power MA Series Main Bearings 4124MA 40

Main Bearing Set;

Part Number: SLP-4124MA40

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Hastings Premium Ductile Ring Sets 2M5538075

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

Part Number: HSN-2M5538075

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Hastings Premium Ductile Ring Sets 2M5538S060

Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5538S060

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

PRW Elite Series Stainless Steel Full Roller Rocker Arms 62350316

Rocker Arms, Elite Series, Stud Mount, Full Roller, Stainless Steel, 1.6 Ratio, Fits 3/8 in. Stud, Chevy, Small Block, Set of 16

Part Number: PQX-62350316

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

ATK High Performance GM 350 330 HP Stage 2 Long Block Crate Engines HP291PM

Crate Engine, GM 350, Stage 2, Long Block, Internal/External Engine Balance, Cast Iron Heads, Chevrolet, 350 CID, Each

Part Number: HPE-HP291PM

3.4 out of 5 stars ( 10 )

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Summit Racing™ Diecast Aluminum Oil Pans SUM-G3527CPR

Oil Pan, Cast Aluminum, Finned, Copper Plated, 5-Quart, Rear Sump, Passenger Dipstick, Chevy, Small Block, Each

Part Number: SUM-G3527CPR

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Clevite P-Series Main Bearings MS-617P-40

MAIN BEARING SET

Part Number: CLE-MS617P40

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Engine Works Cam Bearing Sets SH-290S

Cam Bearings, Steel Backed Babbitt, Chevy, Small Block, Kit

Part Number: EW1-SH-290S

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Hastings Claimer Series Performance Piston Ring Sets CM5531040

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

Part Number: HSN-CM5531040

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Sealed Power Performance Piston Ring Sets E-217K 30

Sealed Power Performance Piston Ring Sets E-217K 30

Piston Rings, Moly, 3.905 in. Bore, 3/32 in., 3/32 in., 3/16 in. Thickness, L6, Set

Part Number: SLP-E-217K30

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Hastings Claimer Series Performance Piston Ring Sets CM5531030

Piston Rings, Claimer Series Performance Piston Ring Sets, Plasma-moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-CM5531030

Not Yet Reviewed

Estimated Ship Date: Friday 1/2/2026

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Estimated Ship Date: Friday 1/2/2026

Mahle Original OE Replacement Pistons S224-3543.020

Single Piston

Part Number: MAH-S2243543020

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

Mahle Original OE Replacement Pistons 224-3547WR.030

Piston With Rings - GM 5.7L (350) V8 FLT CT (030) W/PR MOLY

Part Number: MAH-2243547WR030

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

King HP-Series Rod Bearings CR 807HPND 021

Rod Bearings, HP-Series, Silicon Aluminum, 0.021 in. Crankshaft Undersize, Large Journal, Chevy, Set of 8

Part Number: KGB-CR807HPND021

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

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 ( 2 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Pioneer Automotive Valve Springs S-1052

VL SPR KIT

Part Number: PIO-S-1052

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

Mahle Original OE Replacement Pistons S224-3543.040

Single Piston

Part Number: MAH-S2243543040

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

ATI Super Damper Standard Harmonic Balancers ATI917210

Harmonic Balancer, Super Damper, Internal Balance, Aluminum, Steel, 7.074 in. Dia., Chevy, Small Block, Each

Part Number: ATI-917210

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

Trans-Dapt Performance Slam-Guard Oil Pans 8913

Oil Pan, Steel, Silver, 4 qt., Chevy, Small Block, Each

Part Number: TRD-8913

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

Trans-Dapt Performance Steel Crankshaft Pulleys 8606

Crankshaft Pulley, V-Belt, 1-Groove, Steel, Black, Chevy, Small Block, Long Pump, Each

Part Number: TRD-8606

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

Crown Automotive Oil Filters 89017342

Oil Filter, Canister, 13/16-16 in. Thread Size, Buick, Cadillac, Chevy, GMC, Each

Part Number: CWA-89017342

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 23, 2026 if ordered today

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Estimated Ship Date: Mar 23, 2026 if ordered today

PRW Pushrod Guideplates (PowerPlus+) 1135003

Guideplates, PowerPlus+, Raised, Steel, Black Oxide, 5/16 in. Pushrod Size, Chevrolet, Set of 8

Part Number: PQX-1135003

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

PRW Elite Series Stainless Steel Full Roller Rocker Arms 62350365

Rocker Arms, Elite Series, Stud Mount, Full Roller, Stainless Steel, 1.65 Ratio, Fits 3/8 in. Stud, Chevy, Small Block, Set of 16

Part Number: PQX-62350365

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

PRW Pro Series Billet Aluminum Rocker Arms 6532701

ROCKER ARMS, PRO SERIES ALUM, CHEV 262-400 1955-86, 1.5 x 3/8"

Part Number: PQX-6532701

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

PRW Billet Rocker Arm Stud Girdles 1535001

Rocker Arm Stud Girdle, Clamp-On, Polylock, Aluminum, Natural, Chevrolet, Stock Heads, Kit

Part Number: PQX-1535001

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