I realize there are about 4 million other posts about this but I need an engine IDed. I couldn't find the casting number on the block (it was cold and covered in crap). I did find a number on the timing cover. The number is C8AE-6059-B-2. What do the B and the 2 mean? An old friend of mine from high school has this engine and he claims it's a 390 but he's not sure. It's locked up right now so measuring the stroke is a bit of a problem. Can any of you guys help me out?