> So this is pretty much standard Chevy garden variety fare, which should >bolt to most bellhousings and clutch assemblies, right?

Yup, and thanks to good 'ol Chevy interchangeability, any of the "traditional" GM trans will interchange. Saginaw, BW, Muncie, 3 and 4 speeds have the same mount locations, bellhousing pattern, and I think tailshaft length. Input shaft splines should be the same to at 1 1/8" X10, except some of the four speeds have 26 splines.

Bob