The Manley Performance Subaru FA20 WRX 86.25mm +0.25mm over size dish piston set is engineered for high-performance engine builds. Featuring premium 2618 alloy forgings, these pistons provide exceptional strength and durability for demanding applications. The design incorporates proven cam and barrel skirt profiles that optimize power output while minimizing stress on cylinder walls. This makes them ideal for professional tuners and engine builders seeking reliable, high-quality components for forced induction or high-performance naturally aspirated engines.
Each piston is equipped with chrome moly wrist pins as standard, offering excellent wear resistance and longevity. For enhanced durability, select variants are available with upgraded wrist pins made from 9310 or Turbo Tuff/DLC alloys. Manley's advanced fixturing technology ensures precise machining of ring grooves and skirt turning in a single operation, resulting in accurate ring land and groove dimensions that improve sealing and reduce blow-by. This meticulous manufacturing process contributes to better compression, increased power, and improved overall engine efficiency.
Designed with a focus on performance and engine longevity, these pistons feature carefully engineered cam and barrel profiles that generate significant power while being gentle on the cylinder walls. The pistons are specifically tailored for Subaru FA20 engines, providing a perfect fit for builds that require a slight overbore for increased displacement and power output. They come with high-quality rings that complement the piston’s design, further enhancing sealing and reducing oil consumption. Whether upgrading for increased horsepower or building a high-performance daily driver, the Manley pistons deliver consistent, reliable performance in demanding environments.
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