I have a 2006 rev up motor. I need to find a drivers side head. My question is the casting numbers on the side of the head, does this make a difference when choosing what head I need? I know I need the two cam sensor openings in the rear of the head. Does casting number make a difference?

 

They are the same, you can use any 05 and 06 Rev up head. Or you can use a DE head and have the extra cam sensor opening opened up.