Sportsman Racing Products 140678 SBC Domed Forged Piston Set, 4.030-Inch Bore, 350 Chevy, Set of 8

Upgrade a Small Block Chevy 350 engine with the Sportsman Racing Products 140678 domed forged piston set. Designed for performance-focused engine builds, this set includes eight pistons engineered for a 4.030-inch bore and a 1.260-inch compression height. The forged construction provides a strong, durable foundation for demanding street, strip, and competition applications.
The domed piston design adds 11.00 cc of positive volume and supports compression-focused engine combinations when matched with the appropriate cylinder heads, combustion chambers, and rotating assembly components. Each piston is configured with 1/16-inch, 1/16-inch, and 3/16-inch ring grooves for compatible piston ring packages and dependable oil control when properly installed and clearanced.
Sportsman Racing Products part number 140678 is supplied as a complete set of eight pistons for Small Block Chevy 350 applications using a 4.030-inch bore. Verify bore size, compression height, deck clearance, valve relief or dome clearance, piston-to-wall clearance, and ring compatibility before installation. Professional engine assembly practices and manufacturer-recommended clearances are essential for reliable performance.

Features:

• Brand: Sportsman Racing Products

• Part Number: 140678

• Application: Small Block Chevy 350

• Piston Type: Forged domed piston

• Bore: 4.030 inches

• Compression Height: 1.260 inches

• Dome Volume: Plus 11.00 cc

• Ring Grooves: 1/16 inch, 1/16 inch, and 3/16 inch

• Quantity: Set of 8