Manley 95-99 Mitsu 4G64 2/ 4G63 Head 85.5mm Bore 94mm Stroke 8.5 CR -17cc Dish Extr Duty Piston Set

This piston set from Manley Performance includes four forged pistons, designed for 1995-1999 Mitsubishi 4G64 and 4G63 engines. Each piston measures 85.5mm in bore diameter, has a 94mm stroke, and features a -17cc dish to achieve an 8.5:1 compression ratio. These are built for extreme duty applications, meaning they're made to handle significant stress and power output.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their strength and ability to perform under demanding conditions. They come standard with premium chrome moly wrist pins, and Manley's unique fixturing process ensures the ring lands and grooves are machined with exacting precision. This attention to detail helps achieve a better ring seal, which translates directly to more power. The pistons also feature cam and barrel skirt profiles that are designed to generate power efficiently while also being gentle on your cylinder walls, reducing wear over time.

When rebuilding or upgrading your engine, especially for higher performance goals, using well-built forged pistons like these is a critical step. They are a popular choice among professional engine builders and tuners who rely on Manley for their durability and performance. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. You'll also want to refer to the manufacturer's installation instructions for specific details on fitting these pistons into your engine build.