I don't think the Powerglide is the transmission
you want to use for your Nova. In defense of the
Powerglide, it is light and rugged. The planetary
is as large as the 400,the low band is very effective(very wide)and a lot less rotating mass
than a 350 or 400.
I use to build them for IMCA modifieds and stock
cars without the use of a torque converter(thats
another story)and they stood up well with 400+ hp
with minimal modifications.
The Powerglide was an option behind big blocks
even the 390 hp 427 Corvette.
I guess what I'm saying is the Powerglide is a
good trans but you need that extra gear.
My 2 cents worth.
Gordy
P.S. No sprag clutch in a Powerglide.
