I have an 88 e32 in exceptional condition, while driving to work I heard a "chime" sound. I looked at my gauges and the temp was all the way to the extreme high. I couldn't get off the freeway for about 15 minutes, and could not pull off the roadway either. Result, blown head gasket. The engine has 145,000 miles on it. I am thinking of changing the engine and trans out to a 1995 4 litre engine and trans, what are anybody's thoughts on this. Any one ever do this? Thanks. MIke