I actually considered doing this before deciding on the 5-cylinder
conversion.  I even bought the 2.8l chevy V6 engine.  You can get an adapter
plate from Kennedy Engineering for $500.  However then you have to raise the
deck lid height significantly (like 4 inches or so), the have problems using
the stock starter and clutches ($$$), and they tend to tear up trannies
($$$).  I still have the motor from the '86 S-10 sitting here under a tarp.
Anyone want it for $200?  Hey wait this isn't the
S-10 List.  Sorry, my bad.
Ken Wilford
Van-Again
John 3:16