Engine Blocks & Parts

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 6 Head bolt Pattern, 9.240 in. Std. Deck 4.125 in. Bore, GenIII/IV LS Chevrolet, Each

Part Number: SUM-150216

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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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 ( 69 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Bare, Aluminum, 94mm Bore, Finished-Honed Bores, Hi-Flow Oil Squirters Included, Cross-Bolted Mains, Ford, Mustang, 5.2L Gen 3, Each

Part Number: FMS-M-6010-M52B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Main Bolts, 6-bolt Mains, Flanged Hex, Chevy GM, LS/LSX, Gen III/IV, Kit

Part Number: SUM-910229

4.53 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 1-Piece Rear Main Seal, Ford, Small Block, Each

Part Number: FMS-M6010BOSS302

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150200

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Std Deck, 4 Head Bolt, 4.065 in. Bore, GenIII/IV LS Chevrolet, 6.0/6.2, Each

Part Number: SUM-150215

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Ford 302 Cast Iron , 4-Bolt Mains, 8.200 in. Deck, 4.000 in. Bore, 1-Piece Rear Main Seal, Small Block, Each

Part Number: SUM-150206

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Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Blocks, Bare, 460 C.I.D. Siamese Bore, Cast Iron, Standard Deck Height, Ford 385 Series Main Journal Type, Ford, Each

Part Number: FMS-M6010A460XBB

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Rear Main Seal Cover, Aluminum, Natural, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Kit

Part Number: RNB-635-518

3.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style, 10.200 in. Tall Deck, 4.600 in. Bore, Each

Part Number: SUM-150213

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, 350 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.000 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal

Part Number: SUM-150203

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 2-Piece Rear Main Seal

Part Number: SUM-150202

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Oil Galley Barbell Plug, OEM-Style, Billet Aluminum, Viton® O-Rings, Chevy, LS, Each

Part Number: IRP-EGM-501

5.0 out of 5 stars ( 22 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Freeze Plugs, Brass, Chevy, Small Block, Kit

Part Number: SUM-G1581

4.92 out of 5 stars ( 52 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Engine Block, Cast Iron, 4-Bolt Mains, 4 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each

Part Number: DRT-31161111

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Housing, Rear Main Seal, Aluminum, Chevy, LS, Each

Part Number: SUM-G2621

2.5 out of 5 stars ( 18 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

Lifter Valley Plate, LS Lifter Valley Cover, Aluminum, Natural, Oil Pressure Sensor Port, Chevrolet, Small Block LS, Each

Part Number: ICB-551606LS

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Main Studs, 4-Bolt Main, Chevy, 6.2L, Kit

Part Number: ARP-234-5802

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Bare, Cast Iron, SHP , 4.125 in. Bore, 4-Bolt Main Style, 2-Piece Rear Main Seal, Nodular Main Caps, Small Block, Chevy, Each

Part Number: DRT-31162211-B

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Replica Block, Steel, Natural, Includes Hardware, Chevy, LS, Each

Part Number: SUM-774001

4.33 out of 5 stars ( 12 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Main Studs, Chromoly, Hex Head, 2-Bolt, Chrysler, Dodge, 5.7/6.1L, Kit

Part Number: ARP-244-5400

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style,10.200 in.Tall Deck, 4.500 in. Bore, Each

Part Number: SUM-150212

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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Engine Block, 400 Chevy Small Block, Class 35 German Cast Iron, 4-Bolt 350 Mains, 4.125 in. Unfinished Bore Diameter, 1-Piece Rear Main Seal

Part Number: SUM-150204

Not Yet Reviewed

Estimated Ship Date: Monday 10/19/2026 if shipped by air

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