Manley 90-94 Eclipse (6 Bolt 4G63T) 85mm STD Bore 8.5:1 Dish Piston Set w/ Rings ED

If you're rebuilding the engine in your 1990-1994 Mitsubishi Eclipse with the 6-bolt 4G63T engine, choosing the right pistons is crucial for performance and reliability. This set from Manley Performance is built to handle demanding builds, offering a solid foundation for boosted applications. These pistons feature a dish design to achieve an 8.5:1 compression ratio, which is ideal for forced induction setups where you need to control detonation.

Manley uses domestic 2618 alloy forgings for these pistons, a material known for its strength and ability to withstand high temperatures and pressures common in performance engines. They also feature proven cam and barrel skirt profiles, which help reduce friction and wear on your cylinder walls while still allowing the piston to generate substantial power. The ring lands and grooves are machined to strict standards, ensuring a good seal for maximum power output. Each set includes premium chrome moly wrist pins, and Manley's unique fixturing process ensures the ring grooves are perfectly square to the piston skirt for optimal performance.

This piston set is designed as a standard bore size (85mm) and comes complete with rings. Please note that these pistons are not CARB approved and cannot be shipped to California. If you're aiming for a reliable, high-performance engine build, these Manley pistons are a well-built choice.