SBC Dished Piston Set 4.030 Bore - 18.9cc

The Race Tec Pistons SBC Dished Piston Set 4.030 Bore with -18.9cc dish is designed for serious small-block Chevrolet builders aiming for high-compression performance in naturally aspirated or forced induction applications. These pistons are ideal for street cruisers, bracket racers, or marine engines, providing the necessary compression ratio control and structural integrity for competitive engine builds.

Constructed from forged aluminum, these pistons offer superior strength and thermal stability, which is critical when running boost, nitrous, or extended RPM ranges. The dished design effectively reduces combustion chamber volume, enabling builders to achieve higher compression ratios without extensive modifications to cylinder heads. The precisely calculated -18.9cc dish is engineered to create the necessary compression geometry for both pump gas and race fuel applications.

This piston set is particularly beneficial for builders upgrading stock 350 or 400-cubic-inch blocks, allowing for increased performance while maintaining compatibility with common small-block head configurations. It is an excellent choice for those looking to enhance their engine's capabilities without the need for custom head work, making it a versatile option for various performance builds.