What a great site ! Glad I stumbled across it !! I have a 72 mustang with a transplanted engine. I was told it was a 390. I wasnt really worried what it was at first, but i think Ive been bitten by the auto bug. I want to know more now. Numbers Ive been able to find so far. Block .. 46 and 352 below that ,,then 12(i think) stamped below that.
Intake .. C6AE 9425-G ... and ..979 and a "3"
exhaust manifold C8AE 94AE-A
The valve covers lap the intake and there is little space to see any numbers between the centre spark plugs on the heads.
firing order is 15426378
Any info would be appreciated