Rebore Kit (0.090" overbore)
Item #: JDS3063-JSpecifications: 0.125" overbore (4.375") w/ aluminum pistons Final Application: Fits: 420, 430, 440 gas Replacement Number: AP139-125, SP139-125, RKA1277-125 Notes: Kit includes pistons, rings, wrist pins & clips. Other sizes & models available by special order.