Mitsubishi 4G63 Gen 2 forged piston and ring set; OK for use in turbo and nitrous engines. 3.376 (85.75mm) bore 3.465 stroke 5.906 rod 1.375 compression height; .866 wrist pin diameter; top ring groove 1.5mm; 2nd ring groove 1.5mm; oil ring groove 3mm; Dish -12.5cc; weight 345 grams; high strength forged piston and ring set for use in high performance and racing engines. 8.3-1 compression ratio with 47cc head; Set includes pistons; piston rings; locks and wrist pins. Part number Ross 99816
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