Engine Blocks & Parts | Summit Racing

Summit Racing™ SPC Pro LS Block SUM-150216

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

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Summit Racing™ LS Main Cap Bolt Kits SUM-910229

Summit Racing™ LS Main Cap Bolt Kits SUM-910229

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

Part Number: SUM-910229

4.57 out of 5 stars ( 14 )

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Summit Racing™ SPC Engine Blocks SUM-150203

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 )

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Summit Racing™ SPC Engine Blocks SUM-150204

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

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PRW Main Cap Stud Kits 1000098

Main Cap Fasteners, Main Cap Girdle Stud Kits, 6-bolt, Stud Style, 12-Point Head, Nuts, Chevy LS, Kit

Part Number: PQX-1000098

3.75 out of 5 stars ( 4 )

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ACDelco GM Genuine Parts Replacement Bolts 12556127

Bolt, GM Genuine Parts Replacement Bolt, Hex Head Flange, M8 x 1.25, 0.900 in. Underhead Length, Grade 10.9, Steel, Gray, Each

Part Number: ADO-12556127

3.5 out of 5 stars ( 2 )

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PRW Main Cap Side Bolts 1000099

Main Side Bolts, 6-Bolt Main, 12-Point Head, 10mm Side Studs Only, Chevy LS, Kit

Part Number: PQX-1000099

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PRW Main Cap Stud Kits for 1998-2008 RAM 2500, RAM 3500 - 1000313

Main Cap Studs, 4140 Studs, Parallel Ground Washers, 12-Point Nuts, 2-Bolt Mains, 5.9L, 24V, L6, Cummins, Diesel, Dodge, Kit

Part Number: PQX-1000313

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Estimated Ship Date: Apr 2, 2026 if ordered today

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Summit Racing™ Extreme Duty Main Studs SUM-910513

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Crown Automotive Main Cap Fasteners J4006948

Main Cap Fastener, Bolt, Hex, 1/2-13 in. Thread, 3 in. Length, Steel, Black Oxide, Jeep, Each

Part Number: CWA-J4006948

1.0 out of 5 stars ( 1 )

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PRW Main Cap Stud Kits 1000323

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: Apr 3, 2026 if ordered today

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Summit Racing™ Extreme Duty Main Studs SUM-910523

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PRW Power Main Cap Fasteners 1000308

MAIN CAP STUD KIT, FORD Powerstroke, 6.4L, 2008-2010, Custom-4140 Alloy Steel, 200,000 PSI

Part Number: PQX-1000308

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Summit Racing™ Extreme Duty Main Studs SUM-910518

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PRW Main Cap Stud Kits 1000306

Main Cap Studs, 4140 Studs, Parallel Ground Washers, 12-Point Nuts, 4-Bolt Mains, 6.0L, V8, Powerstroke, Diesel, Ford, Kit

Part Number: PQX-1000306

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Summit Racing™ Extreme Duty Main Studs SUM-910515

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PRW Main Cap Stud Kits 1000311

Main Cap Studs, 4140 Studs, Parallel Ground Washers, 12-Point Nuts, 2-Bolt Mains, 5.9L, 12V, L6, Cummins, Diesel, Dodge, Kit

Part Number: PQX-1000311

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Summit Racing™ Extreme Duty Main Studs for 1989-1998 Dodge Cummins 5.9L 12V

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PRW Main Cap Stud Kits 1000321

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

Part Number: PQX-1000321

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Summit Racing™ Extreme Duty Main Studs SUM-910522

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Summit Racing™ SPC Engine Blocks SUM-150210

Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style, 9.800 in. Standard Deck, 4.500 in. Bore, Each

Part Number: SUM-150210

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Summit Racing™ SPC Engine Blocks SUM-150206

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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Summit Racing™ SPC Engine Blocks SUM-150213

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

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Summit Racing™ SPC Engine Blocks SUM-150215

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

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Summit Racing™ SPC Engine Blocks SUM-150211

Engine Block, Summit, Big Block Chevrolet, Bare, Cast Iron, 4-bolt Main Bolt Style, 9.800 in. Standard Deck, 4.600 in. Bore, Each

Part Number: SUM-150211

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Summit Racing™ SPC Engine Blocks SUM-150205

Engine Block, Ford 351W Cast Iron , 4-Bolt Mains, 9.500 deck, 4.125 in. Bore, 1-Piece Rear Main Seal, Small Block, Each

Part Number: SUM-150205

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Summit Racing™ SPC Engine Blocks SUM-150207

Engine Block, Ford 302 Cast Iron , 4-Bolt Mains, 8.200 in. Deck, 4.125 in. Bore, 1-Piece Rear Main Seal, Small Block, Each

Part Number: SUM-150207

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S&S Cycle MK-Series Performance Crankcases 310-1326

S&S Cycle 2018+ M8 Softail Models MK-Series Crankcase Assembly

Part Number: SSY-310-1326

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today