Help identifiying mopar purple shaft
Take a pair of calipers, measure first 2 lobes, first lobe is going to be exhaust, then intake. Measure across lobe(not the high side yet), this will give you base circle diameter, now measure how high it is, subtract base circle, this will give you lobe lift, multiply by 1.5, this will give you valve lift. Compair numbers in MP catalog, cam ID'ed.