I was looking at going to a serpentine belt drive on the Imp but the 440 source water pump I got has a spiral vane impeller. That's a bit inefficient when the pump spins backwards.

Since the WP housing, cylinder heads, intake, and accessory brackets will be aluminum I thought I'd stick with an aluminum pump, too.

I had a Milodon years ago but it leaked from day one.

Any good leads for pumps that aren't needlessly expensive?

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon