Don't forget the 2 bottom engine studs that mate with the tranny are
different lengths depending on whether the tranny is manual or auto.
The first time I did an engine swap I learned this the hard way.

Measure your studs, you may have to change them.  Luckily they are
almost never seized in the engine case, they come out easy with
double-nut or vice grips.

>The engine I'm installing in my 4 speed Westy came
>from an automatic, I think.