SBC Dome Piston Set 4.060 Bore +0.5.cc

The SBC Dome Piston Set 4.060 Bore +0.5cc by KB Performance Pistons is engineered for small-block Chevrolet engines requiring precision-matched, high-performance internals. Built for serious enthusiasts and professional engine builders, this piston set delivers the reliability and consistency demanded in both street and competition applications. The 4.060-inch bore diameter accommodates overbored engine blocks, making this set ideal for displacement increases and custom engine builds where stock components fall short.

Each piston features a dome combustion chamber configuration with +0.5cc volume, optimizing compression and combustion efficiency for improved horsepower and torque output. KB Performance's dome design reduces quench distance and promotes faster, more complete fuel burn—critical for both naturally aspirated and forced-induction engines. The pistons are manufactured from premium aluminum alloy with precisely machined ring grooves, ensuring proper gas sealing and minimal blowby. The full set includes matched components engineered to tight tolerances, reducing piston-to-wall clearance variance and minimizing noise and wear across the entire engine block.

This piston set is best suited for small-block Chevrolet engines (262–400 cubic inches) with 4.060-inch overbore specifications. Professional installers and engine builders will appreciate the precision engineering and straightforward fitment; proper honing of cylinder walls to the specified bore diameter ensures optimal ring seal and longevity. KB Performance pistons are widely used in street rods, muscle cars, marine engines, and competition builds where durability and consistent performance are non-negotiable.