wiseco 1200 piston kit 9.5:1 compression +020 - XL883 86-19
wiseco 1550 piston kit 9-1 compression +010 - 99-06 Twin Cam
wiseco 1200 piston kit 10:1 compression +020 - XL883 86-19
wiseco 1550 piston kit 10.5-1 compression standard - 99-06 Twin Cam
