Forged Piston Set, 3.307" Bore

The CP-Carrillo SC7700 is a precision-forged piston set crafted from 2618 alloy, engineered for high-performance applications. These pistons are designed with tight tolerances to deliver exceptional strength and a lightweight design. The standard bore size is 3.307 inches (84mm). This piston set is compatible with multiple BMW engine configurations, offering specific compression ratios for each: 10:1 for N20 engines, 11:1 for N55 engines, and 10.2:1 for S55 engines. Each piston has a compression height of 32.4mm and accepts a 22mm pin. The included ring set is CP-3307PVD; it is crucial to note that OEM rings will not fit these pistons, and a dedicated CP ring set is required for proper installation. These pistons are suitable for a range of BMW applications, specifically mentioning compatibility with N20, N55, and S55 engines. The design features a thicker combustion chamber deck which can significantly alter the compression ratio.