Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 85mm STD Bore 8.5:1 Dish Extreme Duty Pistons w/ Rings

If you're rebuilding the engine in your 2003-2006 Mitsubishi Lancer Evolution 8 or 9 with the 7-bolt 4G63T engine, these Manley Extreme Duty pistons are a solid choice. They are designed for an 85mm standard bore and feature a dish to achieve a specific 8.5:1 compression ratio, making them suitable for builds where controlled compression is key.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their strength and ability to handle demanding conditions. The pistons feature proven cam and barrel skirt profiles that help generate power while being considerate of your cylinder walls. They also come with premium chrome moly wrist pins, and Manley pays close attention to the exacting standards for ring lands and grooves to ensure a better ring seal, which translates to more power. Manley's unique fixturing process allows them to machine the skirt and ring grooves in one operation, ensuring ultimate squareness between the two critical areas.

This set includes the pistons and rings, ready for installation. 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.