I recently bought a 1994 SC auto. I ran it through last winter here, but it has sat since. I took the heads off because of a leak, and I had them pressure tested before regasketing it. It turns out they are leaking all over the place, cylinder to cylinder, so they are no good. I need new heads. Are 1989 - 1995 SC heads all the same? I tried searching on this, but no luck. Anybody have a set of good heads for sale for this?