BBC Domed Piston Set 4.280 Bore +48cc

The BBC Domed Piston Set 4.280 Bore +48cc from Sportsman Racing Products is designed for big-block Chevrolet engine builders and competition enthusiasts who demand high performance. These pistons are essential for applications where maximizing compression and combustion chamber efficiency is crucial for power output and engine response.

The +48cc domed crown design increases the effective compression ratio by raising the volume of the combustion chamber above the piston. This design is particularly advantageous when used with quality cylinder heads and optimized fuel octane ratings. The 4.280-inch bore size is standard for large-displacement BBC builds, ensuring compatibility with many OEM and aftermarket cylinder block options.

Engine builders and weekend racers will find this piston set beneficial for achieving their horsepower and torque targets without sacrificing reliability. The precise manufacturing tolerances ensure consistent fit and clearance across all eight cylinders, promoting balanced power delivery and minimizing parasitic losses.