Actually the dsm motor is pretty stout but the 7 bolt's have been known to crankwalk. I run a 6 bolt in my 92 gst, 7 bolts came in the motors half way throught the 92 year and were put in up to 99. It was something assumed to be associated with the oil squirters in the 95-99 block, i.e. why you don't see 92.5.94 blocks getting it. Most likely if the dsm you get (if you do decide to get one) will not get crank walk if its past 100,000. General consumption between dsmer's is if it hasn't happened by then, then it probably wont.