Sportsman Racing Products 306724 BBC Forged Domed Piston Set, 4.280 in Bore, Plus 10.70 cc, Set of 8

Upgrade your Big Block Chevy engine with the Sportsman Racing Products 306724 forged domed piston set. Designed for performance applications, this set features a small dome profile that helps support increased compression and efficient combustion when matched with the correct cylinder head, chamber, and engine combination.

Each piston is engineered for a 4.280-inch bore and includes a 1.645-inch compression height for compatible BBC builds. The dome configuration provides a nominal plus 10.70 cc volume, making these pistons suitable for engine builders seeking a dependable forged foundation for high-performance street, strip, and competition applications. The set includes eight pistons for a complete V8 installation.

These Sportsman Racing Products pistons use 1/16-inch, 1/16-inch, and 3/16-inch ring grooves for compatibility with properly matched piston ring sets. Always verify piston-to-wall clearance, deck height, compression ratio, valve relief and dome clearance, ring selection, and crankshaft and connecting rod compatibility before assembly. Professional installation and precise engine machining are recommended.

Brand: Sportsman Racing Products
Part Number: 306724
Application: Big Block Chevy
Configuration: Forged domed piston, small dome profile
Set Quantity: 8 pistons

Features:

• Forged construction: Provides a durable piston foundation for demanding performance engine applications.
• Small dome profile: Supports increased compression potential when matched with the appropriate combustion chamber and engine components.
• Big Block Chevy fitment: Designed for compatible BBC engine builds.
• 4.280-inch bore: Intended for cylinder blocks machined to the specified bore size.
• 1.645-inch compression height: Helps accommodate compatible deck and rotating assembly configurations.
• Plus 10.70 cc dome volume: Assists with compression ratio planning during engine assembly.
• Ring grooves: Uses 1/16-inch, 1/16-inch, and 3/16-inch ring groove sizing.
• Set of 8: Supplies a complete piston set for a Big Block Chevy V8.