Mitsubishi 4G63 Gen 2 forged stroker piston and ring set; OK for use in turbo and nitrous engines. 3.366 (85.5mm) bore 3.937 stroke 5.906 rod 1.130 compression height; .866 wrist pin diameter; top ring groove 1.5mm; 2nd ring groove 1.5mm; oil ring groove 3mm; Dish -16.2cc; weight 312 grams; high strength forged piston and ring set for use in high performance and racing engines. 9-1 compression ratio with 47cc head; Set includes pistons; piston rings; locks and wrist pins. Includes oil ring support rails. Part number Ross 99871
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