Quote Originally Posted by Scottydoggs View Post
on the heads, casting #706 is the crappy ones.
Quote Originally Posted by BillBoost37 View Post
Which ones you got?
I have 862's on this one. Which were also prone to cracking, but mostly (if not exclusively) if they were "Castech" castings. At least that's what the internet says. My heads do not have the Castech logo.



There was no oil in the coolant or coolant in the oil, so I feel good about them for the time being.