Does, or did, Indy make two different versions of the EZ heads, M.W. and 440 port sizes? I have a set of the 440-EZ-1 on a motor I'm building for a local customer that has the intake M.W. size ports like the SR M.W. heads have but I believe that these have the stock 440 exhaust port size and location, not raised like the SR and not nearly as big as the 440-1 heads have confused This motor is the same as yours will be, 512 C.I. 400 block bracket motor with a Indy 400-2 intake and a 950 CFM 4150 carb. that the customer has.

Last edited by Cab_Burge; 01/19/16 12:26 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)