CHEVROLET Engine Blocks & Accessories

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

Part Number: NAL-19369274

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Estimated Ship Date: Jan 23, 2026 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: Dec 29, 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: Dec 29, 2025 if ordered today

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Four Bolt Main Cap Kit

Part Number: PIO-839022

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Estimated Ship Date: Oct 15, 2025 if ordered today

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Main Studs, SCM-4140 Alloy Steel, 12-Point, Chevy, 6.6L, Duramax Diesel, LB7, LLY, Kit

Part Number: PQX-1000321

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Main Studs, SCM-4140 Alloy Steel, 12-Point, 2-Bolt, Chevy, 6.6L, Duramax Diesel, LBZ/LMM, Kit

Part Number: PQX-1000323

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Main Caps, Ductile Iron, 4-Bolt, Angled, Chevy, SHP Dart Block, Set of 3

Part Number: DRT-32791010

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Estimated Ship Date: Nov 10, 2025 if ordered today

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Main Studs, 2-Bolt Main, Chevrolet, Duramax, 6.6L, LLY, Kit

Part Number: GFN-MSK667Y

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Estimated Ship Date: Sep 29, 2025 if ordered today

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Main Studs, 2-Bolt Main, Chevrolet, Duramax, 6.6L, LBM, LMM, Kit

Part Number: GFN-MSK66ZM

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Estimated Ship Date: Sep 29, 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: Oct 17, 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

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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

Part Number: MIL-11200

5.0 out of 5 stars ( 2 )

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

Part Number: MIL-11205

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Water Return Kit, Remote Mount, Motown II Block, Billet Aluminum, Black Anodized, -12 AN Pro-Lok Hose, Chevy, LS, Kit

Part Number: WRL-703849-K

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Estimated Ship Date: Oct 15, 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: Oct 27, 2025 if ordered today

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Water Return Kit, Remote Mount, Motown II Block, Billet Aluminum, Black Anodized, -12 AN Stainless Braided Hose, Chevy, LS, Kit

Part Number: WRL-703850-K

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Estimated Ship Date: Oct 27, 2025 if ordered today

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Four Bolt Main Cap Kit

Part Number: PIO-839021

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Four Bolt Main Cap Kit

Part Number: PIO-839023

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Four Bolt Main Cap Kit

Part Number: PIO-839020

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