Manley 08+ Mitsubishi Evo X (4B11T) 86.5mm +.5mm Bore 9.0:1 Dish Extreme Duty Piston Set w/ Rings

If you're rebuilding the engine in your 2008-2015 Mitsubishi Evo X with the 4B11T engine, especially for high-performance applications, a solid set of pistons is crucial. These Extreme Duty pistons from Manley are built to handle the demands of serious engine work. They feature a 9.0:1 dish volume, which is a common compression ratio for boosted applications, helping to keep detonation at bay while still making good power.

Manley uses domestic 2618 alloy forgings for these pistons, which are known for their strength and ability to withstand high temperatures and pressures. The skirt profiles are carefully designed with a cam and barrel shape to reduce friction and wear on your cylinder walls, even under heavy load. You'll also find exacting standards for the ring lands and grooves, which is key for getting a good seal from your piston rings, leading to more consistent power output. Each set includes premium chrome moly wrist pins for added durability, and Manley's unique manufacturing process ensures the ring grooves are perfectly square to the piston skirt.

This set is for a 0.5mm oversize bore, measuring 86.5mm, so be sure your cylinders are machined to this specification. Keep in mind these pistons are not CARB approved and cannot be shipped to California. If you're aiming for a robust and reliable engine build, these Manley pistons are a popular choice among professional engine builders.