The fel Pro 1009 where design for the 4.250 bore sizes originally, not the 4.320+ sizes They also have the built in fire ring that should have a reciever groove in the heads or block to seal correctly
Last edited by Cab_Burge; 08/13/1601:25 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
They also have the built in fire ring that should have a reciever groove in the heads or block to seal correctly 
