Rebore Kit (0.125" overbore)

Specifications: 0.045" overbore (4.7325" diameter) w/ aluminum pistons designed for increased compression (approximately 6.8 to 1 compression ratio) Final Application: Fits: B series SN: 201000 & up, 50 Replacement Number: AP132-45, SP132-45, RKA1239-45 Notes: Kit includes pistons, rings, wrist pins & clips. Other sizes & models available by special order.