I have a '73 Bronco with a 302. It started running rough, so I purchased a compression gauge. Found a cylinder with 0 psi. Pulled the valve cover off to have a peek and noticed the number 2 spring was very bent and the seats underneath the spring were also mangled. I wasn't quite ready for the rebuild yet. What has probably happened? Is it rebuild time, or can a get a bit more life out of it?

 

you might want to post this in the smallblock section aswell.

 

What was compression on other cylinders? Engine use oil? or otherwise ok? If so, you could put a set of springs on it. I think I'd replace that one & see if compression was ok before doing them all.

 

I think your valve guide went out.

 

I would say its rebuild time, at the very least your going to have to pull the heads.