Summit Racing Engine Blocks & Accessories

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

Part Number: SUM-910229

4.62 out of 5 stars ( 13 )

Estimated Ship Date: Monday 6/9/2025

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

Part Number: SUM-150201

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 6/9/2025

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• $100.00 Summit Bucks

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 ( 5 )

Estimated Ship Date: Monday 6/9/2025

• Free Shipping
• $100.00 Summit Bucks

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 6/9/2025

• Free Shipping
• $100.00 Summit Bucks

Engine Block, Pro LS, Bare, Cast Iron, 6-bolt Main Bolt Style, 9.240 in. Standard Deck, Chevrolet, Each

Part Number: SUM-150216

Not Yet Reviewed

Estimated Ship Date: Monday 6/9/2025

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Freeze Plugs, Brass, Chevy, Small Block, Kit

Part Number: SUM-G1581

4.91 out of 5 stars ( 46 )

Estimated Ship Date: Monday 6/9/2025

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 ( 1 )

Estimated Ship Date: Monday 6/9/2025

• Free Shipping
• $100.00 Summit Bucks

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

Part Number: SUM-774001

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 6/9/2025

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Engine block coolant and oil plug kit, Threaded Engine Block Oil/Coolant passage Plugs, Brass/Steel, Oil Plug and barbell, Chevy, GM LS GenIII/IV, Kit

Part Number: SUM-G1584

4.72 out of 5 stars ( 29 )

Estimated Ship Date: Monday 6/9/2025

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

Part Number: SUM-G2621

2.35 out of 5 stars ( 17 )

Estimated Ship Date: Monday 6/9/2025

Freeze Plugs, Brass, Chevy, Big Block, 396-454, Kit

Part Number: SUM-G1582

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Monday 6/9/2025

Freeze Plug Kit, Brass, Ford, Small Block, 221, 255, 260, 289, 302, 351W, Kit

Part Number: SUM-G1583

4.4 out of 5 stars ( 10 )

Estimated Ship Date: Monday 6/9/2025

Bellhousing Dowel Pins, .500 in. Diameter, .007 in. Offset, Ford, Mopar, Lincoln, Mercury, Pair

Part Number: SUM-192004

4.21 out of 5 stars ( 28 )

Estimated Ship Date: Monday 6/9/2025

Oil Cooler Bypass Block-Off Plate, Billet Aluminum, Clear Anodized, With Single 90* 1/8 in. NPT Ports, Chevy, LS, Each

Part Number: SUM-121028

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 6/9/2025

Bellhousing Dowel Pins, .500 in. Diameter, .014 in. Offset, Ford, Mopar, Lincoln, Mercury, Pair

Part Number: SUM-192007

4.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 6/9/2025

Bellhousing Dowel Pins, .625 in. Diameter, .007 in. Offset, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: SUM-192005

3.94 out of 5 stars ( 17 )

Estimated Ship Date: Monday 6/9/2025

Main Bolts, Side Bolts Only, 6-bolt Style, Hex, Chevy, LS, Set of 10

Part Number: SUM-910229-3

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 6/9/2025

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

Part Number: SUM-150206

Not Yet Reviewed

Estimated Ship Date: Monday 6/9/2025

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Bellhousing Dowel Pins, 0.625 in. Diameter, 2.000 in. Length, Buick, Chevy, GMC, Oldsmobile, Pontiac, Pair

Part Number: SUM-192000

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 6/9/2025

Bellhousing Dowel Pins, .625 in. Diameter, .014 in. Offset, Buick, Chevy, Oldsmobile, Pontiac, Pair

Part Number: SUM-192006

2.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 6/9/2025

Main Bolts, 4-bolt Style, 12-point, 180,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910203

4.93 out of 5 stars ( 14 )

Estimated Ship Date: Monday 6/9/2025

Bellhousing Dowel Pins, .500 in. Diameter, Ford, Mopar, Lincoln, Mercury, Pair

Part Number: SUM-192002

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 6/9/2025

Bellhousing Dowel Pins, .500 in. Diameter, .021 in. Offset, Ford, Mopar, Lincoln, Mercury, Pair

Part Number: SUM-192008

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Monday 6/9/2025

Oil Cooler Block-Off Plate, Billet Aluminum, Clear Anodized, 1/8 in. NPT Port, Chevy, LS, Each

Part Number: SUM-121026

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 6/9/2025

Cylinder Head Dowel Pin, Solid, Chevy GM, LS/LSX, Gen III/IV For use with standard or 1/2 in. head studs. Set of 4

Part Number: SUM-910233

Not Yet Reviewed

Estimated Ship Date: Monday 6/9/2025