Welcome Bob,

If you do a search in the forums here, you'll find a lot of discussions on Series 60 vs 8v92 engines. I would put into the seach widget terms like 8v92, s60 series 60 etc, and you'll get quite a lot to read.

A quick synopsis:

1. The change over came in early '95, I believe.
2. There were some concerns with the early S60 engines with wrist pins snapping.
3. A S60 will generally get you about 2-3 more MPG, which is significant when you're down in the 5.5 region.
4. The S60 feels a little snappier to me, off of a dead start
5. The 8V sounds MUCH better!
6. It's getting a little harder to find shops with techs that are trained in the 8V engines. Not impossible by any means, just a bit harder.
7. I think most (not all by any means) people are moving now to S60 coaches, so there are some real deals out there on 8V's.

Ray