i have searched but i cant seems to find specific measurements on the eyebrow location and width and what nots. Its for a s4 6-port. Does anyone have a picture with these on it or perhaps the numbers??

--thanks
joe

 

You'll need to make your own template as none exist for the 6 port.

You limit is basically the seal groove on the iron (don't cut into it or you will catch the side seals) and then the water jacket top and bottom. If you want to start cutting into the rotor housing, then the limit is the water seal.