SBC Dished Piston Set 4.040 Bore - 12.7cc

The SBC Dished Piston Set 4.040 Bore -12.7cc from Race Tec Pistons is designed for small-block Chevrolet engine builders looking to achieve high-compression, fuel-efficient builds while maintaining reliability. This piston set is particularly suitable for those working on naturally aspirated and moderately boosted applications where precise chamber volume control and compression ratio optimization are essential.

Each piston features a dished design that creates a -12.7cc combustion chamber volume, allowing for fine-tuning of overall compression ratios based on specific cylinder head choices and gasket thickness. The 4.040-inch bore diameter is a popular size for 350 cubic-inch and 383 cubic-inch small-block platforms, balancing displacement gains with bore wall thickness retention. Race Tec's manufacturing process ensures tight tolerances and uniform piston weight, which are critical for crankshaft balance and harmonic stability at elevated RPM.

This piston set is ideal for engine builders, restoration shops, and enthusiasts who are rebuilding carbureted engines or assembling performance crate motors. With a complete set of 8 pistons, it provides everything needed for a comprehensive engine rebuild, ensuring that builders can achieve the desired performance and reliability in their projects.