
SKU: BBC5313-STD. The CP Pistons Bullet Race Series piston set is engineered for high-horsepower Big Block Chevy race engines where durability, precision, and consistency are critical. This set features a 4.500-inch bore, 4.250-inch stroke, and 6.385-inch connecting rod, along with a +13.0cc dome designed to support aggressive compression ratios in naturally aspirated competition builds. Precision-forged from premium aluminum alloy and CNC-machined to exact tolerances, these pistons deliver excellent thermal stability, reduced friction, and reliable ring seal under extreme RPM and cylinder pressure. Supplied as a set of 8, this Bullet Race Series kit is trusted by professional engine builders pushing Big Block Chevy performance to the limit.