Engine Blocks & Parts

Main Stud Kit

Part Number: PIO-855006

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855013

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855014

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855015

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855016

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855018

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Estimated Ship Date: Sep 22, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855020

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Estimated Ship Date: Sep 22, 2025 if ordered today

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

Part Number: HRS-H350C-1

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Main Cap, SB Chev 350

Part Number: HRS-H350S-1

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Main Cap SB Chev 400

Part Number: HRS-H400-1

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: NAL-19433406

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Rear Main Seal Housing, Aluminum, Natural, Chevrolet Performance LSX Block, Each

Part Number: NAL-19369274

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Estimated Ship Date: Dec 29, 2025 if ordered today

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REAR MAIN SEAL HOUSING

Part Number: NAL-12705665

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Top End Engine Kits CYL WORKS STD BORE CYLINDER 10 CYL WORKS STD BORE CYLINDER 10 00 RZR XP '14-15

Part Number: CLW-60003

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Estimated Ship Date: Sep 29, 2025 if ordered today

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STD BORE CYLINDER

Part Number: CLW-20004

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Estimated Ship Date: Sep 29, 2025 if ordered today

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STD BORE CYLINDER

Part Number: CLW-50004

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Top End Engine Kits CYL WORKS STD BORE CYLINDER 70 CYL WORKS STD BORE CYLINDER 70 0/800 SPORSTMAN/RZR/RANGER

Part Number: CLW-60002

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.495 in. Bore, Splayed Billet Caps, 55mm Babbit Cam Bearings and 0.904 Lifter, Each

Part Number: WRL-095110-55

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.595 in. Bore, Splayed Billet Caps, 55mm Babbit Cam Bearings and 0.904 Lifter, Each

Part Number: WRL-095112-55

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Main Studs, 4-Bolt Main, Merlin IV, Billet Main Caps, Chevy, Big Block, Kit

Part Number: WRL-701416

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Estimated Ship Date: Oct 6, 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, Small Block, Each

Part Number: WRL-084010

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Estimated Ship Date: Oct 6, 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

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Estimated Ship Date: Oct 6, 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-084130

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 6, 2025 if ordered today

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MOTOWN SBC, 9.025" x 4.120" x 400 mains, billet splayed caps - Raised Camshaft - .842" Bushing

Part Number: WRL-084130RC

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Engines, Bare Blocks, SBC Motown Block, 400 Mains, 9.025 in. Deck Height, 4-bolt Main Bolt Style, Chevrolet, V8, Chevy Small Block Gen I, Each

Part Number: WRL-084130RC-904

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Estimated Ship Date: Oct 6, 2025 if ordered today

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