Engine Blocks & Parts | Summit Racing

Dart Main Bolts 66733750

Main Bolt, 4-Bolt Main, Standard Hex Head, 1/2 in. Thread, 3.750 in. UHL, Each

Part Number: DRT-66733750

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Dart Main Bolts 66732750

Main Bolt, 4-Bolt Main, Standard Hex Head, 1/2 in. Thread, 2.750 in. UHL, Each

Part Number: DRT-66732750

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

ARP High Performance Series Main Bolts 135-5002

ARP High Performance Series Main Bolts 135-5002

Main Bolts, High Performance Series, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: ARP-135-5002

5.0 out of 5 stars ( 16 )

Estimated Ship Date: Today

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Melling Freeze Plugs MPE-102BR

Engine Expansion Plugs, Freeze Plugs, Brass, Chevy, Big Block, Kit

Part Number: MEL-MPE-102BR

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

ARP High Performance Series Main Bolts 135-5201

Main Bolts, High Performance Series, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: ARP-135-5201

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Melling Freeze Plugs MPE-275BR

Engine Expansion Plugs, Freeze Plugs, Brass, Chevy, GMC, Big Block, Kit

Part Number: MEL-MPE-275BR

4.18 out of 5 stars ( 11 )

Estimated Ship Date: Today

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Milodon Main Bolt Kits 81140

Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit

Part Number: MIL-81140

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Chevrolet Performance Bowtie Sportsman Race Blocks 19212196

Engine Block, Cast Iron, 4-Bolt Mains, 4.240 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Big Block Mark IV

Part Number: NAL-19212196

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Chevrolet Performance Bowtie Sportsman Race Blocks 19212197

Engine Block, Cast Iron, 4-Bolt Mains, 4.240 in. Diameter Bore, 2-Piece Rear Seal, Chevy, Big Block Mark IV

Part Number: NAL-19212197

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

World Products 8.1 Liter Direct Replacement Blocks 018100

Bare Block, 8.1L Vortec, 10.245 in. Deck Height, 4.245 in. Bore, Standard Cam, Nodular Iron Caps, Direct Stock OEM Replacement, Each

Part Number: WRL-018100

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Estimated Ship Date: Feb 9, 2026 if ordered today

Chevrolet Performance Bowtie Sportsman Race Blocks 19432546

Engine Block, Cast Iron, Nodular Iron 4-Bolt Mains, 4.560 in. Bore, 1-Piece Seal, 10.200 in. Deck, Chevy, Big Block, Each

Part Number: NAL-19432546

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Mr. Gasket Cylinder Head Dowel Pins 4377

Cylinder Head Dowel Pins, 0.638 in. Outside Diameter, .503 in. Height, Chevy, Big Block, Pair

Part Number: MRG-4377

Not Yet Reviewed

Estimated Ship Date: Today

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Mr. Gasket Cylinder Head Dowel Pins 4375

Cylinder Head Dowels, .310 in. Outside Diameter, .562 in. Height, Chevy/Mopar, Pair

Part Number: MRG-4375

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Summit Racing™ Mockup Replica Blocks SUM-774008

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

Part Number: SUM-774008

Not Yet Reviewed

Estimated Ship Date: Today

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Melling Engine Expansion Plug Kits MPE-275R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-275R

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

COMP Cams Engine Finishing Kits 233

Engine Finishing Hardware, Head Dowels, Camshaft Bolts, Crank Key, Oil Pump Dowel, Chevy, Small Block, Kit

Part Number: CCA-233

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Today

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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 )

Estimated Ship Date: Today

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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

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today