Manley 03-06 Evo 8/9 (7 Bolt 4G63T) 85mm Bore 100mm Stroke 8.5:1 Dish Pistons w/ Ring *Extreme Duty*

If you're building a high-performance 4G63T engine for your 2003-2006 Mitsubishi Lancer Evolution 8 or 9, choosing the right pistons is critical for handling the increased power and stress. These Manley Performance Extreme Duty pistons are designed to meet the demands of serious engine builds, offering a robust foundation for significant power output.

Crafted from domestic 2618 alloy forgings, these pistons are built for strength and durability under extreme conditions. They feature a specific dish volume to achieve an 8.5:1 compression ratio, which is ideal for boosted applications where detonation control is key. Manley uses proven cam and barrel skirt profiles that help reduce friction and wear on your cylinder walls, even at high RPMs. The ring lands and grooves are machined to exacting standards, ensuring a tight seal for improved power and efficiency. Each set includes premium chrome moly wrist pins, and Manley's unique manufacturing process ensures the ring grooves are perfectly square to the piston skirt for optimal performance.

This set is designed for an 85mm bore and a 100mm stroke, with a dish volume that results in an 8.5:1 compression ratio. Remember that these pistons are not CARB approved and cannot be shipped to California. For builds pushing the limits, these Manley pistons offer the reliability and performance that professional engine builders trust.