[gtofreek]

Originally Posted by chiphead

Has the Valley Pan been checked, to make sure the lifter tie bars aren't kissing the underside of the Valley Pan? After the windage tray, roller tie bar hitting the valley pan is the next common interference point.

if these were iron heads, I would suspect that the pushrods are dragging on the heads, due to the 1. 65 rockers. But the Kaufman heads have enough clearance, right?

(Just FYI Joe, often when you put 1. 65 rockers on iron heads, you get interference between the push rod and the head casting. It can result in slightly bent pushrods. I would imagine that aftermarket heads will clear)

Heads had plenty of room for 1.65 rockers. Also the valley pan appeared to have plenty of clearance.