Originally Posted By justinp61
I don't know of any differences, but a buddy of mine has two and both have huge radius's cut at the top of the cylinders. None of the car 440's I've owned had this. shruggy


I noticed this as well on the RV/Industrial block I have. Other oddball thing about this block is it's bored as a 413 and has a '78 casting date. 413 production supposedly ended in '77. shruggy