Engine Blocks & Parts

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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EXPANSION PLUG

Part Number: PIO-EPC-92-B-10

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Freeze Plugs, Stainless Steel, 0.875 in. Outside Diameter, 0.250 in. Depth, Set of 10

Part Number: PIO-EPC176SS10

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Estimated Ship Date: Sep 16, 2025 if ordered today

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EXPANSION PLUG

Part Number: PIO-EPS-71-25

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855001

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855005

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855006

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855013

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855014

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855015

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Estimated Ship Date: Sep 16, 2025 if ordered today

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Main Stud Kit

Part Number: PIO-855016

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Estimated Ship Date: Sep 16, 2025 if ordered today

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