Engine Blocks & Parts

CYL SLEEVE ASSEMBLY

Part Number: MAH-IMKT545803T

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Estimated Ship Date: Oct 2, 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 2, 2025 if ordered today

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Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, with Windage Tray, Kit

Part Number: MIL-81117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Nov 26, 2025 if ordered today

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REAR MAIN SEAL HOUSING

Part Number: NAL-12705665

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Estimated Ship Date: Dec 5, 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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Engine Expansion Plug, Brass, 1.625 in. O.D., Each

Part Number: NAL-94673017

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Estimated Ship Date: Dec 5, 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 5, 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 5, 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 22, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.688 in. Bore I.D., 0.125 in. Wall Thickness, 13.000 in. Length, Each

Part Number: MEL-CSL564

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Estimated Ship Date: Sep 24, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 3.688 in. Bore I.D., 0.094 in. Wall Thickness, 10.250 in. Length, Each

Part Number: MEL-CSL414

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Estimated Ship Date: Sep 24, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.125 in. Bore I.D., 0.094 in. Wall Thickness, 10.250 in. Length, Each

Part Number: MEL-CSL418A

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Estimated Ship Date: Sep 24, 2025 if ordered today

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CYLINDER SLEEVE

Part Number: MEL-CSL1118N

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Estimated Ship Date: Sep 24, 2025 if ordered today

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Cylinder Sleeve, Cast Iron, 4.050 in. Bore I.D., 0.125 in. Wall Thickness, 6.313 in. Length, Each

Part Number: MEL-590295

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Estimated Ship Date: Sep 24, 2025 if ordered today

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Engine Expansion Plug Kit, Stock Replace

Part Number: MEL-MPE-850R

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Estimated Ship Date: Sep 24, 2025 if ordered today

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Freeze Plug (Priced Per Pkg Of 8)

Part Number: RRA-18-5961-9

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Estimated Ship Date: Oct 2, 2025 if ordered today

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Top End Engine Kit, 110 in Power Package, Black Wrinkle Finish, 585 Easy Start Cams, Harley-Davidson®, Kit

Part Number: SSY-330-0668

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Estimated Ship Date: Sep 22, 2025 if ordered today

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CYL SLEEVE ASSEMBLY

Part Number: CLE-2262093

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Billet Cover, LS3 Billet Valley Cover

Part Number: AAF-ALL90107

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 7, 2025 if ordered today

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STD BORE CYLINDER

Part Number: CLW-20001

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Estimated Ship Date: Sep 22, 2025 if ordered today

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STD BORE CYLINDER

Part Number: CLW-20003

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Estimated Ship Date: Sep 22, 2025 if ordered today

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STANDARD BORE CYLINDER

Part Number: CLW-20010

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Estimated Ship Date: Sep 22, 2025 if ordered today

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