302 heads

273, on the magnum heads I was afraid they would end up being cracked and if not would need "work" also. I am also concerned with all the other costs that go along with a magnum swap from what I can find (intake,pushrods,roller cam etc). that's why I posted this thread I was curious about more specifics on the 302's and if they were crack prone, because from what I read up until today a lot of the guys on here and other websites praised the 302 because of the closed chambers etc but now I don't know what to do.im really starting to get confused, im just trying to increase compression so I can run a better cam and have a decent running little street car. it will never be raced or anything, just trying to find the easiest most budget friendly way for this to occur. I now i'll need headers and im going with dougs, I know i'll need a gear im looking for that now, I want to stay with the 318 i just like it and already have it.