Posted by Russ Roth on Friday, January 10, 2003 at 2:12AM :
In Reply to: Pre-75 400 V-8 block posted by Josh on Thursday, January 09, 2003 at 4:35PM :
Josh,
I would not worry too much about the year of the block. There has been research disproving that theory even though Chrysler put it out. Any year block can be thick or thin walled. Only sure way to tell is by sonic checking.
RR