Cam lobe discoloration normal?

Because of cat converters, oil companies have different formulas for cars, trucks, and motorcycles. Find out your needs before you buy.

The cam looks great. The correct way to check the lifter bottoms has already been stated. Just do the lifters one at a time and return them. Keep the pushrods in order and return them to their original positions. ...............or............
rotate the engine to see the most of the lifter bottom. And using a dental mirror and or a camera phone should give you a good idea of what's happening underneath. Add a dab of cam lube to all the lobes. --- Run it.---