found a supposed 428 cj. by the numders i was given off the block C7ME-A, it should be a cj motor. anything else to check to verify what it is? need to look at it this week to make sure what it is. thanks
My 428 block had a C6ME number. It was from a '67 T-bird. It had a 1U crank. It is not a CJ motor. It did have a "A" cast into the back side of the block(trany side). I heard the CJ motors had a "CJ" mark in place of the "A". The C7ME-A blocks were used from 67-70. The best clue would be the crank part number as stated before by My427stang. Knowing what the motor came out of also might be a good indicator of what the motor really is do to the lack of externally telling the difference between a 352, 360, 390, 410, 428. All 428's were externally balanced and the CJ's had a special counter weight behind the front damper.