I am new to your site so i am still figuring out how to run it. i have a 99 dodge cummins and got the notice in the mail for the 53 block. i checked the block it has a 2 on the drivers side and a A on the passenger side. I checked all over it, these are the only numbers on the casting. Can anyone give me any input about this block.

Thanks

 

Where do i check to see if my friend has a 53 block? Is it stamped in it somewhere?