2.2 questions

[acv]

i am looking at a 96 cavalier gt with a 2.2 . they say that it has a hair line crack in the head. the car still runs but idels slightly rough but smooths out at higher rpms. it has a little white smoke from the tailpipe and when you hold your hand down there it dampens your hand a little. are there any way that this could affect the block? it is dropping a little water in the oil but not a lot. any thoughts or opions greatful, also is a 91 or 93 block the same as the 96?

[acv]

also would the head from a 93 enginge interchange with the 96

[Tower1980]

A head with a hairline crack will fail faster than a head without one. As well, depending on where the crack is, you may experience faster degradation. I had the exact same problem, only I didn't know about the hairline crack. Over time, the crack worsened and eventually became a bow, of 20 microns, in my head, and that bow was enough to lose the pressure. You can take your chances, but likely the head will fail soon.

[public]

The 93 head will work. This head will fail fairly soon. It only takes a little water in the oil to do a lot of damage. The blocks are the same until the ecotec engine replaced them.