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JE Ultra Series forged pistons for the Nissan SR Series are a set of four 86.5mm bore flat-top pistons with 10.0:1 compression, suitable for high-compression or boosted applications. Ultra Series features JE’s Aligned Grain Flow forging process, thermal barrier crown and skirt coatings, lateral gas ports and improved pin oiling, along with heavy-duty wrist pins, all produced in the USA for performance builds.
JE Pistons Ultra Series Nissan SR20DET 86.5mm Bore 10.0:1 CR Set of 4 Pistons
