The CP-Carrillo Bullet series pistons for LS7 engines with a 4.125-inch bore and 4.125-inch stroke are engineered for high-performance applications. These pistons feature a flat-top design with a -4.6cc crown volume, resulting in a compression ratio of approximately 11.5:1 when paired with 70cc combustion chambers. Manufactured from 2618 aluminum forgings, they are suitable for nitrous oxide, supercharged, or turbocharged setups. The pistons come with a premium ring set, including a 1.5mm steel gas nitride top ring, a 1.5mm Napier second ring, and a 3.0mm oil ring. Wrist pins measuring 0.927 inches in diameter and 2.250 inches in length are included. These pistons are compatible with 6.125-inch rod lengths and are designed to withstand the demands of high-horsepower LS7 builds.
Features
Engine Compatibility: LS7
Bore & Stroke: 4.125-inch bore, 4.125-inch stroke
Piston Type: Flat-top with -4.6cc crown volume
Compression Ratio: ~11.5:1 with 70cc combustion chambers
Material: 2618 aluminum forging for strength and durability
Rings Included:
- 1.5mm steel gas nitride top ring
- 1.5mm Napier second ring
- 3.0mm oil ring
Wrist Pins: 0.927-inch diameter, 2.250-inch length
Rod Compatibility: 6.125-inch rod length
Boost & Nitrous Ready: Designed for nitrous, turbocharged, and supercharged setups