CHEVROLET Engine Blocks & Accessories Engines & Components

PRW Billet Steel Main Caps 1735001

Main Caps, Billet Steel, Chevy 305/350, 1967-1986, 4 Bolt Replacement Style, Sold as a Set of 3

Part Number: PQX-1735001

5.0 out of 5 stars ( 1 )

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Summit Racing™ Oil Cooler Block-Off Plates SUM-121029

Oil Cooler Bypass Block-Off Plate, Billet Aluminum, Clear Anodized, With Dual 1/8 in. NPT Ports, Chevy, LS, Each

Part Number: SUM-121029

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ICT Billet Main Seal Adapter Bolts 551435

ICT Billet Main Seal Adapter Bolts 551435

LS Rear Main Seal Adapter Bolts LS1, LS3, LS2, LSX, Set of 12

Part Number: ICB-551435

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Summit Racing™ LS Finned Aluminum Valley Covers SUM-240065-SAT

Lifter Valley Cover, Finned, Aluminum, Natural, Chevy, LS, Each

Part Number: SUM-240065-SAT

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PRW Billet Steel Main Caps 1740002

Main Caps, Billet Steel, 4-Bolt, Angled, Chevy, Small Block, Set of 3

Part Number: PQX-1740002

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Stef's Rear Main Seal Adapter Kits 7035

Seal Adapter, Billet Aluminum, 1 to 2-Piece, Chevy, 7.4L, Each

Part Number: STF-7035

3.0 out of 5 stars ( 1 )

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PRW Billet Steel Main Caps 1735003

Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Small Block, Set of 3

Part Number: PQX-1735003

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Howards Cams Extreme Billet Main Caps H350R-1

Main Cap, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Each

Part Number: HRS-H350R-1

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Canton Racing SBC Rear Main Seal Adapters 21-850

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: CTR-21-850

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Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

ARP Main Stud Kits 235-5601

Main Studs, 4-Bolt Main, Dart Big M Block, Chevy, 454, Kit

Part Number: ARP-235-5601

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ARP High Performance Series Main Bolts 134-5203

Main Bolts, High Performance Series, 4-bolt Main, Hex, Designed To Fit World Motown Cast Iron Engine Blocks, Kit

Part Number: ARP-134-5203

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Melling Performance Cylinder Sleeves 592256

Cylinder Sleeve, Cast Iron, 4.095 in. Bore I.D., 0.125 in. Wall Thickness, 7.500 in. Length, Each

Part Number: MEL-592256

Not Yet Reviewed

Estimated Ship Date: May 26, 2026 if ordered today

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Estimated Ship Date: May 26, 2026 if ordered today

PRW Billet Steel Main Girdles 9045401

Main Cap Girdle, 1045 Billet Steel, No Hardware, for Chevy Big Block 454, Each

Part Number: PQX-9045401

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Estimated Ship Date: Jun 30, 2026 if ordered today

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Estimated Ship Date: Jun 30, 2026 if ordered today

Dorman Rear Main Seal Housings 635-786

Rear Main Seal Cover Kit

Part Number: RNB-635-786

Not Yet Reviewed

Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Go Fast Bits DV Plus Diverter Valves with TMS Advantage T9354

Turbocharger Diverter Valve, DV Plus Diverter Valve with TMS Advantage, Ford, Volvo, Porsche, Borg-Warner Turbos, Each

Part Number: GFS-T9354

5.0 out of 5 stars ( 2 )

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ACDelco GM Genuine Parts Main Bearing Cap Bolts 12561388

Main Cap Fasteners, ACDelco GM Genuine Parts Multi-Purpose Bolts, 7/16-14 Threads, Cadillac, Chevy, GMC, Olds, Pontiac, Each

Part Number: ADO-12561388

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Moroso Deck Plug Kits 37800

Deck Plug Kit, Steel, Black Oxide, 3/4 in. NPT, Chevy, Small Block/90 Degree V6, Set of 6

Part Number: MOR-37800

5.0 out of 5 stars ( 1 )

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Dorman Main Cap Bolts 45691

Main Bolts, OE Replacement, GM, Set of 10

Part Number: RNB-45691

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Estimated Ship Date: May 18, 2026 if ordered today

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Estimated Ship Date: May 18, 2026 if ordered today

Pioneer Cylinder Head Dowel Pins PG-233-100

Cylinder Head Dowel Pins, Chevy, Big Block, Set of 100

Part Number: PIO-PG-233-100

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Holley LS Valley Covers 241-367

Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Natural Finish, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-367

5.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 230-5402

Main Cap Fasteners, Main Stud Kits, 2-bolt Main, Standard 12-point Nuts, Chevrolet, 6.6L Diesel, Kit

Part Number: ARP-230-5402

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BTR DOD Delete Plug Kits LT2DODPLUGKIT

Cylinder Deactivation Components, Gen V LT, Delete Plug, LT2, Kit

Part Number: BTC-S0491

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Moroso Offset Cylinder Head Dowels 37900

Cylinder Head Dowel Pins, Offset 0.030 in., Chevy Big Block, Chrysler Big Block, Set of 4

Part Number: MOR-37900

3.0 out of 5 stars ( 1 )

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Melling Performance Cylinder Sleeves CSL297HP

Cylinder Sleeve, Cast Iron, 4.250 in. Bore I.D., 0.125 in. Wall Thickness, 7.000 in. Length, Each

Part Number: MEL-CSL297HP

5.0 out of 5 stars ( 1 )

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World Products Motown LS Water Return Kits WPIWPI703850-K

Water Return Kit, Remote Mount, Motown II Block, Billet Aluminum, Black Anodized, -12 AN Stainless Braided Hose, Chevy, LS, Kit

Part Number: WRL-WPI703850-K

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