CAMSHAFTS58091-14XL

Requires high-lift valve springs see Fueling Beehive® Econo, Endurance or High Load valve springs. Higher compression also recommended, along with performance pushrods and lifters High-flow intake and performance exhaust required Made in the USA Most cam compartments will need to be machined to make clearance for 580 High Lift cams. Does not fit XR models Rpm range: 2400-6900+ Overlap: 42