Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 86mm +1mm Over Bore 100mm Stroke 8.5:1 Dish Pistons w/ Rings

Starting with the 2618 alloy forgings, these Manley pistons are built for serious performance. This specific set is designed for the 4G63T engine found in models like the 1993-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and the 2003-2006 Mitsubishi Lancer. They feature an 86mm bore, which is a +1mm overbore from stock, and a 100mm stroke, combined with a dish that results in a compression ratio of 8.5:1. This setup is ideal for builders looking to increase displacement and handle boosted applications reliably.

Manley uses proven cam and barrel skirt profiles on these pistons. This design helps them generate substantial power while also being gentle on your cylinder walls, which is crucial for longevity. The ring lands and grooves are machined to strict standards, ensuring a better seal from your piston rings, which translates directly into more power and efficiency. They also come with premium chrome moly wrist pins, and Manley's unique fixturing process allows for skirt turning and ring groove machining in a single operation. This ensures the ring grooves are perfectly square to the skirt, contributing to a more consistent seal under pressure.

This set includes the pistons, rings, and tool steel wrist pins, making it a comprehensive package for your engine build. 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.