Originally Posted by vincent713
What exactly is lapped head?
The contact surface has been polished to be as smooth and flat as can be, same for the top of the cylinder it matches up to.
The parts are all painted, so it took a little bit to get to metal, and then a while longer getting the nicks and grooves from the factory. I wish I'd taken before and after pics to show how many scars and scratches there were in both surfaces under the paint.