53 block

[Robts]

What is the deal with the 53 block. How do you tell if it is one

 

[AsTroSS]

more info is over here:

http://www.competitiondiesel.com/forums/showthread.php?t=10957&highlight=block

 

[Dazed&Confused]

Casting is stamped 53 on block. I've heard it can be stamped in several different locations on the block though. You craming a Cummins in the Ford?

 

[Diesel Freak]

55's crack too!!