BBC Domed Piston Set 4.155 Bore +17cc

The BBC Domed Piston Set 4.155 Bore +17cc from KB Performance Pistons is engineered for serious big-block Chevrolet builds where compression ratio optimization and combustion chamber geometry directly impact power output. This piston set is designed for high-performance street, strip, and racing applications where domed crowns increase compression and promote efficient fuel ignition.

Builders choosing a +17cc dome volume are targeting specific compression targets that require careful matching with cylinder head flow characteristics and fuel octane ratings. KB Performance's domed piston design forces the air-fuel mixture toward the center of the combustion chamber, reducing quench distance and improving flame propagation for more complete combustion and consistent detonation resistance.

This piston set is ideal for BBC builders transitioning from stock or low-compression platforms to performance builds targeting 10.5:1 to 11.5:1 compression ratios, depending on deck height and cylinder head selection. The 4.155-inch bore sizing ensures precise fitment in standard or stroked BBC blocks, while KB's piston construction utilizes premium materials and thermal-resistant coatings to withstand sustained high heat and cylinder pressure.