New aftermarket Wiseco Forged Turbo 78.5mm piston set with -13cc for Early NA Mazda Miata. This a set of Wiseco forged pistons that go inside the engine block with a 78.5mm bore. These Wiseco pistons are designed for turbo or supercharger applications with lower compression ratios and feature -13cc dished tops. The pistons set includes stainless steel gas nitride top rings, cast iron napier hook second rings, flex-vent oil rings with gas nitride scraper rails. The pistons feature ArmorGlide skirt coating. This set comes with pistons, rings, pins, and corresponding clips included. Part number K554M785. Fits 1990-1993 Mazda Miata. Sold as a set of four pistons.
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