SBC Dished Piston Set 4.030 Bore -18.9cc

The SBC Dished Piston Set 4.030 Bore -18.9cc from RACE TEC PISTONS is designed for small-block Chevy engines that require high-performance forged internals and optimized compression geometry. This piston set is ideal for builders aiming for elevated compression ratios and improved combustion efficiency while ensuring reliability. Whether you're working on a stroker motor, a vintage hot rod, or a performance street engine, these dished pistons allow for precise tuning of compression ratios.

The -18.9cc dish volume effectively reduces combustion chamber volume, which raises the compression ratio compared to flat-top or slightly domed designs. This feature is particularly beneficial when paired with aftermarket heads or larger displacement combinations. RACE TEC PISTONS utilizes premium aluminum alloy in their forgings, providing superior strength and heat transfer properties that are essential for high-RPM operation and forced induction environments.

Enthusiasts building stroker small-blocks, supercharged or turbocharged combinations, and race-oriented street engines will find significant advantages in the compression characteristics and durability of this piston set. The 4.030-inch bore diameter accommodates .030-inch overbore applications on standard 400 small-block platforms, making it a versatile choice for rebuild scenarios. This piston set is particularly advantageous for those looking to enhance performance without compromising on reliability.