CHEVROLET Chevy small block Gen I Engine Blocks & Accessories

Engine Block, Aluminum, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: BRO-8B1150-A

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855021

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Main Stud Kit

Part Number: PIO-855004

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Main Studs, Chromoly, 4-Bolt Main, Chevy, Oldsmobile, 350 with Dart Rocket Block, Kit

Part Number: ARP-184-5403

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Estimated Ship Date: Jul 18, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy Small Block, Large Journal, with Straps & Splayed Caps, Kit

Part Number: ARP-234-5604

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Estimated Ship Date: Jul 18, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy, Small Block, Large Journal, with Straps, Kit

Part Number: ARP-234-5603

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Estimated Ship Date: Jul 18, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy, 400, with Windage Tray, with 3.0 in. Outer Studs, Kit

Part Number: ARP-234-5607

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Estimated Ship Date: Jul 18, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.125 in. Bore, 1-Piece Rear Main Seal, Chevy, Each

Part Number: DRT-31161211L

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Estimated Ship Date: Aug 29, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084020

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Estimated Ship Date: Aug 4, 2025 if ordered today

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Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Chevy, Small Block, 7.245 Wide, Set

Part Number: MIL-11190

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Main Caps, 3-Center, Billet Steel, Angled Outer Bolts, 4-Bolt, Chevy, 350, Large Journal, Set of 3

Part Number: HRS-H350E

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, 350, Each

Part Number: NAL-12480049

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Estimated Ship Date: Sep 29, 2025 if ordered today

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STUD

Part Number: NAL-12561389

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084080-904

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.120 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084081-904

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, Billet Main Caps, 3.995 in. Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084110

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engines, Bare Blocks, SBC Motown Block, 350 Mains, 9.025 in. Deck Height, 4-bolt Main Bolt Style, Chevrolet, V8, Chevy Small Block Gen I, Each

Part Number: WRL-084120RC

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, 350 Mains, Billet Main Caps, 4.120 in. Bore, Raised Cam, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084125RC

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, 400 Mains, Billet Main Caps, 4.120 in. Bore, Raised Cam, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084135RC

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, 400 Mains, 0.904 in. Lifter, Billet Main Caps, 4.120 in. Bore, Raised Cam, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084135RC-904

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, Billet 4-Bolt Mains, 3.995 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084180

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engines, Bare Blocks, SBC Motown LS Bare Block, 350 Mains, 9.240 in. Deck Height, 4-bolt Main Bolt Style, Chevrolet, V8, Chevy Small Block Gen I, Each

Part Number: WRL-084181

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Engine Block, Cast Iron, Billet 4-Bolt Mains, 4.120 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: WRL-084181-904

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Estimated Ship Date: Jul 23, 2025 if ordered today

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Main Cap, Rear, Merlin II, 4-Bolt, 400 Mains, Billet Steel, Chevrolet, Small Block, Each

Part Number: WRL-703355R

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Estimated Ship Date: Jul 23, 2025 if ordered today

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LIFTER VALLEY SCREEN KITS

Part Number: STF-67100

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Estimated Ship Date: Jul 8, 2025 if ordered today

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