1948-84 big twin cams the leader in performance ... 455b .479c type application hydraulic bolt-in broad power range for streetable ... or performance parts mechanical bolt-in performance throughout the power range ... for increased torque in heavy bikes with heavy loads no spring change ... a mechanical performance cam can be used with stock compression but works ... and top end improvement heads must be clearanced and may require valve spring ... carb and cylinder head work replaces b hydraulic bolt-in performance ... for increased torque in heavy bikes with heavy loads no spring change ... exhaust hydraulic mild performance can be used with stock springs carb and ... rpm range hydraulic performance can be used with performance type carb and ...
a b c 4-speed xlh-xlch gears a b 17-1141 17-1140 f c d 17-9760 17-1122 d ... 0168 17-1119 17-1142 17-9825 17-1118 17-5621 fits 1954-90 1954-90 1954-72 1973-83 ... main 17-1053 sifton 27 main 17-0168 b 35760-54 17 counter 17-1119 17-1060 c ... -1118 17-8580 e 35695-58 27 counter 17-5621 17-5620 f 35695-87 26 counter 17-1143 ... 35750-58a c 20 counter 1958-90 35296-56a b 23 main 1956-90 35296-56a 23 main ... gears for sportster 17 tooth includes bushing and torrington needle bearing andrews ... vt no oem fits 17-1140 a 37449-56 1956-66 xlh-xlch 1967-69 xlch 17- ... 1141 b 37448-67 1967-70 xlh 1970 xlch 17-8710 ... 35709-54b d 23 counter 1954-90 35305-56a a 20 main 1956-90 andrews c ratio ... true close ratio shifting for xl gear boxes vt no fits 17-8720 1971-78 all xl 17- ...