Engine Blocks & Parts

Main Studs, 4-Bolt, Pontiac 389-455, Center Studs, Kit

Part Number: MIL-81222

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Estimated Ship Date: Nov 25, 2025 if ordered today

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

Part Number: MIL-11165

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Estimated Ship Date: Nov 25, 2025 if ordered today

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Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, 400 Main, Chevy, Small Block, Set

Part Number: MIL-11180

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Nov 25, 2025 if ordered today

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Main Caps, Ductile Iron, 3-Center, Angled Outer Bolts, 4-Bolt, Pontiac, 421, 428, 455, Set

Part Number: MIL-11520

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Estimated Ship Date: Nov 25, 2025 if ordered today

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Main Caps, Angled Side Bolt, Ductile Iron, CNC Machined, Holden, V8, Kit

Part Number: MIL-11570

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Estimated Ship Date: Nov 25, 2025 if ordered today

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Sleeve Assembly Ring Set - Caterpillar 3500 Series, 3508 Ind.,Gen.,Marine 8,12,16 cyl 6.700 in. Bore D

Part Number: MAH-S41832

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Sleeve Assembly Ring Set - Cat. 137mm/5.400" Bore 3400E, C15 (OE#Top 1777496(1)+ Int.1765749(1)+Oil

Part Number: MAH-S41927

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Sleeve Assembly Ring Set - Cummins, H4, H6, H672, HR4, HRC, H734, HR6, HRF, NHC4, NT4, N734,

Part Number: MAH-S41314

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Estimated Ship Date: Oct 6, 2025 if ordered today

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REBORE KIT ASSEMBLY

Part Number: CLE-2252513020

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Estimated Ship Date: Oct 14, 2025 if ordered today

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REBORE KIT ASSEMBLY

Part Number: CLE-2252738020

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Estimated Ship Date: Oct 14, 2025 if ordered today

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CYL SLEEVE ISX

Part Number: CLE-2264643

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Estimated Ship Date: Oct 14, 2025 if ordered today

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CYL SLEEVE (DRY)

Part Number: CLE-2264644

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Estimated Ship Date: Oct 14, 2025 if ordered today

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CYL SLEEVE ASSEMBLY

Part Number: MAH-IMKT545803T

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Cylinder Sleeve Wet With O-Rings - Caterpillar 3500 - w/ Wide Flange Sleeve Ind., Gen., Marine 8-12-16 cyl

Part Number: MAH-2264557

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Estimated Ship Date: Oct 6, 2025 if ordered today

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Cylinder Sleeve Wet With O-Rings - Cms. 159mm/6.250" Bore K19 (OE#4009231WS/4024773), 020"/.020" O.S Flange,

Part Number: MAH-2264563

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Estimated Ship Date: Oct 6, 2025 if ordered today

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BTR MAIN STUD KIT - 4.5" LONG AND 4.75" LONG STUDS - BTR45475

Part Number: BTC-BTR45475

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Estimated Ship Date: Sep 15, 2025 if ordered today

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Main Cap Fasteners Brian Tooley Racing Custom Age 625+ LS Main Stud Kit

Part Number: BTC-BTRCA625MSK

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Estimated Ship Date: Sep 15, 2025 if ordered today

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STD BORE CYLINDER

Part Number: CLW-30004

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Estimated Ship Date: Sep 25, 2025 if ordered today

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CYL SLEEVE ISX

Part Number: CLE-2264641

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Estimated Ship Date: Oct 15, 2025 if ordered today

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REBORE KIT ASSEMBLY

Part Number: CLE-2253513020

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Estimated Ship Date: Oct 15, 2025 if ordered today

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CYL SLEEVE ASSEMBLY

Part Number: CLE-2262093

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Estimated Ship Date: Oct 15, 2025 if ordered today

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CYL SLEEVE ASSEMBLY

Part Number: CLE-2262112

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Estimated Ship Date: Oct 15, 2025 if ordered today

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CYL SLEEVE ASSEMBLY

Part Number: CLE-2262114

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Estimated Ship Date: Oct 15, 2025 if ordered today

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CYL SLEEVE WET W/ O-RING

Part Number: CLE-2264616

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Estimated Ship Date: Oct 15, 2025 if ordered today

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CHEV 400, Stud Kit, Main Girdle, Includes 10ea, 1/2" Longer Studs, 7/16" -14/20 x 5.00" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000207

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Estimated Ship Date: Oct 15, 2025 if ordered today

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