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JE Ultra Series forged pistons for the Nissan SR Series are a set of four 86.5mm bore pistons with 8.5:1 compression and inverted dome/dish crowns. Ultra Series employs JE’s Aligned Grain Flow forging, thermal barrier crown and skirt coatings, lateral gas ports and enhanced pin oiling, plus robust wrist pins to handle the elevated cylinder pressures of power‑added applications.
JE Pistons Ultra Series Nissan SR20DET 86.5mm Bore 8.5:1 CR Set of 4 Pistons
