Big X on rear of block
Thread Starter
Registered User
Joined: Oct 2006
Posts: 4
Big X on rear of block
Hello I have a 455 big block I am rebuilding (396021 F). There is a big X welded to the surface on one side, the other side has 68 F2 on the rear of the block. Does anyone know what the X represents.
Last edited by kona-jack; Jan 22, 2009 at 04:00 AM. Reason: More info
Thread
Thread Starter
Forum
Replies
Last Post
