HOT CAMS VALVE SPRING KIT HONDA CRF 450R 09-

Exhaust springs max lift at OE installed height 0.478" Intake springs max lift at OE installed height 0.529". Springs fit cam 1144-BLD, 1145-BLD, 1146-BLD, 1147-BLD, 1148-BLD, 1149-BLD, 1179-BLD, 1177-BLD, 1178-BLD, 1179-BLD, 1180-BLD, 1181-BLD.