Upgrade your Mitsubishi 4B11T engine with the Manley Performance Turbo Tuff Series piston set, designed for high-performance and durability. Crafted from high-quality 2618 alloy forgings, these pistons deliver superior strength suited for demanding applications. Their precise cam and barrel (skirt) profiles maximize power output while minimizing wear on cylinder walls, making them an ideal choice for professional engine builders and tuners seeking reliable performance.
Each piston features unique fixturing that allows for skirt turning and ring groove machining in a single operation, ensuring perfect ring land and groove squareness for optimal sealing. The pistons are equipped with premium Chrome Moly wrist pins, which are standard, with options for upgraded alloys such as 9310 and Turbo Tuff/DLC for enhanced durability. Strict adherence to manufacturing standards results in precise ring lands and grooves, contributing to increased compression, better ring seal, and overall improved engine efficiency.
The Turbo Tuff pistons are designed to accommodate an 86.5mm bore with a 9.0:1 compression ratio and a +.5mm dome, providing a reliable boost in power for turbocharged applications. Their construction and design focus on generating substantial horsepower while being gentle on the cylinder walls, ensuring long-lasting performance even under high-stress conditions. These pistons are a perfect upgrade for enthusiasts and professional tuners aiming to maximize their engine’s potential while maintaining reliability.
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