SBC Dished Piston Set 4.030 Bore -15cc

The Small Block Chevy Dished Piston Set 4.030 Bore -15cc from WISECO-PRO TRU is engineered for serious engine builders and performance enthusiasts who demand precision and reliability in their Small Block Chevrolet builds. Dished pistons are essential for controlling compression ratios in modified engines, making them ideal for forced induction applications, turbocharged systems, and high-boost configurations where traditional flat-top designs would cause detonation. This four-piece piston set provides the foundation for balanced, efficient combustion and extended engine longevity in both street and competition applications.

Manufactured by industry-leading WISECO, these pistons feature a -15cc dish volume that reduces overall compression ratio, a critical specification for turbocharged or supercharged builds running premium pump fuel or race fuel. The 4.030-inch bore diameter accommodates overbored Small Block Chevy blocks, allowing builders to maximize displacement and power while maintaining OEM block compatibility. WISECO's precision manufacturing ensures consistent piston-to-valve clearance, optimal ring sealing, and superior durability through advanced alloy composition and rigorous quality control. The dished design promotes efficient fuel mixing and combustion chamber optimization, essential for maximum performance and reliability at elevated boost pressures.

This piston set is ideal for builders preparing turbocharged or supercharged Small Block Chevy engines, drag racing platforms, and street performance applications requiring compression control. Installation requires proper honing to WISECO specifications and professional engine assembly to ensure correct piston-to-cylinder clearance and bearing preload. Compatible with standard Small Block Chevy connecting rods and crankshafts, this set integrates seamlessly into 350, 383, or 406 cubic inch builds. Proper valve-to-piston clearance verification is critical during assembly—consult detailed build specifications and engine bay diagrams to confirm compatibility with your specific cylinder head and cam profile.