ok need advice on new heads

September 07, 2006, 05:39:32 PM

I dont know if you all remeber but i had my 306 running decent. Till a head started leaking water into the runner. Well since then i got a pair of c9oe's (351W) from 88cat i am in the process of putting screw in studs, plates, porting the exahust, new valves, springs the works.

Here is where i need the help these heads have a 60cc chamber i want to have them milled down to 58cc, wich i would have to have about .012 of inch taken off of them (from what i have been told). I need some confimation on that, also i would like to know if milling them that much would cause intake alignment problems(i have been told no) thanks for help

ok need advice on new heads

Reply #1 – September 07, 2006, 07:28:37 PM

the machine shop that mills the heads should be able to help you with your questions better. that being said most ford small block heads lose 1cc per every .006. id definitely have them cc the heads before and after to know for sure. very simple process that shouldnt cost much