CHEVROLET Engine Blocks & Accessories

Main Studs, 6-Bolt Main, Chevrolet, 4.8, 5.3, 5.7, 6.0L, Kit

Part Number: ARP-234-5608

4.91 out of 5 stars ( 66 )

Estimated Ship Date: Today

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Main Caps, Billet Steel, 3-Center, Splayed Outer Bolts, 4-Bolts, Chevy, Small Block, Set of 3

Part Number: HRS-H350S

4.5 out of 5 stars ( 2 )

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Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Black Anodized, 11-Bolt Pattern, Chevy, LS, 6.0L, 6.2L, 7.0L, Each

Part Number: HLY-241-362

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Main Caps, Billet Steel, 3-Center, Straight Outer Bolts, 4-Bolt, Chevy, Small Block, Set of 3

Part Number: HRS-H350R

4.5 out of 5 stars ( 8 )

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Main Cap, Billet Steel, Rear, Straight Outer Bolts, 2-Bolts, Chevy, Small Block, Each

Part Number: HRS-H350RWS

3.5 out of 5 stars ( 2 )

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Mockup Block, Chevrolet Big Block, Mark IV, 9.8 Long Block, Steel, Includes bolts, Each

Part Number: SUM-774008

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Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Black Anodized, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-369

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Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 4

Part Number: PQX-1745401

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Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Natural Finish, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-367

5.0 out of 5 stars ( 1 )

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Rear Main Seal Housing, Billet Aluminum, Natural, Chevy, Small Block LS, Each

Part Number: ICB-551727

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

Part Number: MIL-11050

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 21, 2025 if ordered today

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Main Studs, 4-Bolt Main, Chevy, Big Block, Gen VII, Kit

Part Number: ARP-135-5901

5.0 out of 5 stars ( 1 )

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

Part Number: MIL-11150

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Oct 20, 2025 if ordered today

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

Part Number: MIL-11160

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 21, 2025 if ordered today

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Main Caps, Billet Steel, Center, Straight Outer Bolts, 4-Bolt, Chevy, Big Block, Set of 3

Part Number: HRS-H454

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Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Each

Part Number: MOR-38415

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Aug 20, 2025 if ordered today

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Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 4

Part Number: PQX-1745403

1.0 out of 5 stars ( 1 )

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Housing, Rear Main Seal, Billet Aluminum, Rear Main Included, Gasket,Black Andoized, Chevy, LS, Each

Part Number: SUM-01-8576

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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-WPI703850-K

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Housing, Rear Main Seal, Billet Aluminum, Rear Main Included, Gasket,Clear Andoized, Chevy, LS, Each

Part Number: SUM-01-8571

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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: Sep 8, 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: Sep 8, 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: Oct 21, 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: Oct 21, 2025 if ordered today

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