Manley 90-93.5 Eclipse (6 Bolt 4G63T) 86mm +1mm Over Bore 8.5:1 Dish Piston Set w/ Rings

This set includes four forged pistons, each measuring 86mm with a +1mm overbore, designed for the 90-93.5 Mitsubishi Eclipse with the 6-bolt 4G63T engine. These pistons feature a dish design that results in an 8.5:1 compression ratio, making them a solid choice for builds aiming for controlled boost response. They come complete with the necessary rings and tool steel wrist pins to get your engine rebuild underway.

Manley uses domestic 2618 alloy forgings for these pistons, a material known for its strength and performance under demanding conditions. The pistons are crafted with proven cam and barrel skirt profiles, which help generate power efficiently while minimizing wear on your cylinder walls. Manley's manufacturing process ensures exacting standards for ring lands and grooves, promoting a better seal for improved power output. Their unique fixturing allows for skirt turning and ring groove machining in a single operation, ensuring the ring grooves are perfectly square to the skirt for optimal performance.

These pistons are not CARB approved and cannot be shipped to California. If you're rebuilding the top end of your 4G63T, these Manley pistons offer a well-built foundation for a powerful and durable engine.