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JE Ultra Series forged pistons for the Nissan SR Series are a set of four 87mm bore pistons with 8.5:1 compression and inverted dome/dish crowns. These Ultra Series pistons use JE’s Aligned Grain Flow forging, thermal barrier crown and skirt coatings, lateral gas ports and optimized pin oiling, combined with high‑strength wrist pins to support stressed, boosted engine operation.
JE Pistons Ultra Series Nissan SR20DET 87mm Bore 8.5:1 CR Set of 4 Pistons
