Never had any coolant in the oil it’s definitely a crack
after closer inspection it is bulged out slightly. Looks like it may have froze at some point but oh well don’t
much matter now. So I’m needing a good block to build on I been looking for about a week or so now but not much luck. Did come across one that I think
had gold plated coolant passages or something
:lol: Was asking a grand for it I would build on a 400 or 383 well before I’d pay that for a bare block.