Rebore Kit (.125" overbore)
Item #: JDS3059-JSpecifications: 0.045" overbore (4.295") w/ aluminum pistons Final Application: Fits: 420, 430, 440 gas Replacement Number: AP139-45, SP139-45, RKA1277-45 Notes: Kit includes pistons, rings, wrist pins & clips. Other sizes & models available by special order.