SBF Dome Piston Set 4.030 Bore +12cc

The SBF Dome Piston Set 4.030 Bore +12cc is engineered for Small Block Ford enthusiasts looking to maximize compression and structural integrity in their high-performance engine builds. These forged components serve as a critical upgrade for builders moving beyond factory cast limits, providing the necessary durability for increased RPMs and power output. Whether you are refreshing a classic Mustang or building a dedicated track machine, these pistons provide the precision required for tight tolerances and reliable combustion chamber dynamics.

Constructed from high-strength forged material, the SBF Dome Piston Set 4.030 Bore +12cc features a +12.00 cc dome volume designed to significantly raise the compression ratio in compatible cylinder heads. The precision-machined ring grooves are sized at 1.5mm for the top and second rings, with a 3.0mm oil ring groove, ensuring optimal sealing and oil control under high-stress conditions. The 4.030-inch bore size allows for common overbore applications, providing a fresh cylinder wall surface and increased displacement for improved torque and horsepower.

This SBF Dome Piston Set 4.030 Bore +12cc is sold as a complete set of eight, making it a direct solution for V8 engine overhauls and custom racing specifications. Engine builders will appreciate the consistency across the set, which is vital for balancing the rotating assembly and maintaining uniform performance across all cylinders. Due to the dome profile and increased compression, users should verify valve-to-piston clearance and ensure their fuel system is tuned for the higher octane requirements typically associated with these specifications.