Head gasket replacement....

[VintageMusclecar]

Originally Posted by markinnaples

Thank you. I think it may have blown due to having to use crap gas quite a few times when I couldn't make it to the engine shop but I will definitely check all of those things you've said.

Re: the crap gas issue...

Be sure to carefully inspect the top of the pistons for any visible cracks or flaws, esp. around the outer perimeter above the top ring. Detonation/pre-ignition will often crack the piston resulting in catastrophic engine failure. Been there, done that--twice.

(not my pic)