Quote Originally Posted by pat mccarthy
matt if you port your new head take the old one cut if up in a band saw i did this to junk heads so i knew how much i had and where not to go nuts and if you cut thru the port in to the ex or intake you can run liners in the port if you did not get in the water i have put the liners in the 355cnc dart heads
the newer head is a compleatley diffrent casting ( bigger ports ). I'm just going to do a little bowl work under the valves, and call it good.