1970 454 LS6 block
 

I have a 3963512 casting number block dated L-2-9 with the front pad numbers decked off but is a true 4 bolt block. The block is 60 over with one sleeve and have had the block pressure tested and is a good usable block. I will include the paperwork on the block as well. $2,000 shipped to you or pickup and save on shipping costs 330-770-2517.