CHEVROLET Chevy small block Gen I Summit Racing Engine Blocks & Accessories

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 6/23/2025

• Free Shipping
• $100.00 Summit Bucks

Freeze Plugs, Brass, Chevy, Small Block, Kit

Part Number: SUM-G1581

4.91 out of 5 stars ( 46 )

Estimated Ship Date: Monday 6/23/2025

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 ( 2 )

Estimated Ship Date: Monday 6/23/2025

• Free Shipping
• $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 ( 6 )

Estimated Ship Date: Monday 6/23/2025

• Free Shipping
• $100.00 Summit Bucks

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 6/23/2025

Main Bolts, 2-bolt Style, 12-point, 180,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910202

3.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 6/23/2025

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 6/23/2025

• Free Shipping
• $100.00 Summit Bucks

Main Studs, 4-bolt Style, 180,000 psi Yield Strength, Washers, Nuts, Chevy, Small Block, Kit

Part Number: SUM-910204

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 6/23/2025

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 6/23/2025

• Free Shipping
• $100.00 Summit Bucks

Main Studs, 2-Bolt Main, 180,000 psi Yield Strength, Washers, Hex Nuts, Chevy, Small Block, Kit

Part Number: SUM-910205

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 6/23/2025