BBC Domed Piston Set 4.280 Bore +14cc

The BBC Domed Piston Set 4.280 Bore +14cc from Sportsman Racing Products is designed for serious big-block Chevrolet builders aiming for maximum compression and peak horsepower. These domed pistons are specifically engineered for high-performance street and race engines, where optimizing combustion chamber volume is crucial for power delivery and efficiency. Whether you're building a stroker motor, rebuilding a classic 427, or developing a competitive platform, this piston set provides the necessary compression ratio elevation to harness modern fuel capabilities.

Each piston features a 4.280-inch bore diameter with a +14cc domed crown geometry that effectively reduces combustion chamber volume and raises the static compression ratio without requiring additional modifications to the block or heads. The dome profile is designed to enhance flame propagation and ensure a more complete fuel burn, resulting in increased torque across the power band. Manufactured to precise tolerances, these pistons guarantee a consistent fit and minimal clearance variation, ensuring long-term durability under the high-load conditions typical of both forced-induction and naturally aspirated performance engines.

This piston set is ideal for BBC engine builders targeting compression ratios between 10.5:1 and 12:1, suitable for both pump gasoline and race fuel applications. Proper pairing with the right head gasket thickness and deck height planning can further enhance quench characteristics. Builders looking to maximize their engine's performance will find this piston set to be an invaluable component in achieving their goals.