Picked up this 6.0 cast iron block to replace my son's 6.0 aluminum block. Problem is the timing is 58x and this is 24x. Too much trouble to switch out at this time for me. I was told it had a scratch in one of the cylinder walls and this block could be bore all the way to .006 if needed. It comes with the heads and intake. It's been in my shop out of weather. Text me if you need more info. Thanks.