Forged Piston Set, 86mm Bore, 9:1 Compression

The CP-Carrillo SC7402 forged pistons are engineered for high-performance applications in Subaru FA20 and Toyota 4U-GSE engines. Constructed from durable 2618 alloy, these pistons offer a standard bore size of 86mm (3.386 inches) and a compression ratio of 9:1, making them suitable for builds seeking enhanced power output while maintaining reasonable drivability. Key specifications include a 1.292-inch compression height and a 22mm pin size, ensuring compatibility with many performance connecting rods. CP-Carrillo emphasizes the precision forging process and tight tolerances of their pistons, which contribute to exceptional strength and reliability under demanding conditions. It is crucial to note that OEM piston rings will not fit these CP-Carrillo pistons; a dedicated CP ring set is required for proper installation and function. The pistons are manufactured in Irvine, California, USA.