Manley 90-94 Eclipse (6 Bolt 4G63T) 86mm +1mm Over Bore 9.0:1 Dish Piston Set w/ Rings

Manley Performance is well-known for building strong engine components that professional builders trust. If you're working on the 4G63T engine in your 1990-1993 Eagle Talon, Mitsubishi Eclipse, or Plymouth Laser, this set of forged pistons is designed to handle demanding use. These pistons are an 86mm bore size, which is 1mm over the standard bore, and feature a 9.0:1 compression ratio dish design.

These pistons are made from 2618 alloy forgings, a material chosen for its strength and ability to perform under pressure. They use proven cam and barrel skirt profiles, which help generate power while being easier on your cylinder walls. The ring lands and grooves are machined to strict standards to ensure a good seal, which translates to more power from your engine. Manley's unique fixturing process allows them to machine the skirt and ring grooves in one operation, ensuring they are perfectly square with each other for optimal performance.

This set includes premium chrome moly wrist pins for added durability. For those looking for even more robustness, Manley also offers upgrades to 9310 and Turbo Tuff/DLC alloys on select part numbers. Keep in mind that these pistons are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.