Manley 03-06 Mitsubishi Evo 8/9 4G63/4G63T 87mm +2mm -22cc 8.5/9 CR Ex. Duty Dish Pistons w/Rings

Manley's Platinum Series pistons start with domestic 2618 alloy forgings, a material chosen for its exceptional strength and performance under high stress. These pistons are specifically sized at 87mm with a +2mm overbore and a -22cc dish, targeting an 8.5 to 9.0 compression ratio for the 4G63 and 4G63T engines found in the 2003-2006 Mitsubishi Evo 8 and 9 models. This combination is designed for demanding engine builds where reliability and power output are critical.

The design incorporates proven cam and barrel skirt profiles, which help reduce friction and wear on the cylinder walls while still allowing the engine to make substantial power. Manley also pays close attention to the exacting standards for piston ring lands and grooves. This precision ensures a better seal from the piston rings, which translates directly into more efficient combustion and increased power. For added durability, these pistons come standard with premium chrome moly wrist pins, and Manley's unique fixturing process allows for skirt turning and ring groove machining in a single operation, ensuring ultimate squareness between the ring groove and the skirt.

This set includes the pistons and rings needed to get your engine rebuild underway. Please note that these pistons are not CARB approved and cannot be shipped to California. If you're building a high-performance Evo engine, these pistons are a solid option trusted by many professional engine builders and tuners.