Wouldn't matter on the highway. The high gear ratio is 1:1 on both. The 350 has a lower first gear, which would be better for getting started. Especially in a heavy vehicle.
No.
I have a 350 turbo in mine Just about any transmission will work! Powerglide, Turbo 350 (lockup or non) or Turbo 400, even 700r4.
You are probably thinking of the turbo hydro, 350. It was Chevies base automatic, after the powerglide. It had 3 gears, and was fairly tough. The turbo 400, was the heavy duty version.
powerglide is a tranny
The optional transmissions were the Powerglide, the Turbo-Hydramatic 350 and 400.
If your speaking of the vacuum modulator for the transmission, they no longer use them on the transmissions with overdrive and electronics. The powerglide, turbo 350 and turbo 400 used to use them.
One and the same. The GM name for that trans is turbohydramatic.
You will need an adapter bellhousing, if there is any in production. You will just have to do some serious research on Google and other search engines. You will probably have better luck installing a Powerglide transmission.
4l60e
A 350 or 400 torque converter will not work on a Powerglide transmission due to differences in design. All are somewhat similar but come in different sizes and connections.
The 700 has a lower first gear, and, with the overdrive will give better fuel economy. The 350 is a little stronger, and cheaper.
Yes, but turbo conversions aren't cheap. There's a lot more to them than merely slapping on a turbo.