['ol Pinion head]

I'd keep it Pontiac V8, the supposedly cheaper cost of 350 horse chevy 350 build doesn't hold water. When you're done, what do you have? Another no one wants it bread & butter Chevy 350 in a 2nd Gen Bird, in other words, you just shot off a couple toes.

In a traditional Pontiac V8 swap, the 301 Turbo engine's PS pump can be used in a swap, so can the 301 Turbo's crank pulleys, you'll need two common (& cheap) small stamped steel '71+ PS brackets, either a '71-74 Pntiac v8 front alt mtg plate (or a '75-79 version), & a 481040 wp pulley. $50-60 outlay plus ship by most longtime used parts vendors.