Consistency

[Alan Roehrich]

Originally Posted by Mark Yacavone

Sorry bud, but you stepped into one of my pet peeves.

Pontiac did not use a Powerglide transmission, ever. Neither did Buick or Oldsmobile.
They did use a planetary two- speed known as the Super Turbine 300 ,or the Jetaway, depending on the brand. The only thing that's the same as a PG, is the gear ratio (1.76 PG) . The BOP trans is a stronger unit than the PG in stock form, but it never had any aftermarket support.
Calling one of these 2- speed transmissions a Powerglide would be no more correct than calling it a Fordomatic or a Powerflite.

Now , for your question. Put a Turbo 200 3 speed in it and look for a Chevelle , Monte Carlo or 70 GTO 12 bolt in it in case you ever want to use a 4.33 ring and pinion.

Sorry Mark, but you are wrong. At one point, in the early seventies, there was a major fire at the plant where the 350 was built. GM made PowerGlides with multi fit cases to be installed in the place of the 350 transmissions in all GM cars. I actually had one of those transmissions in a circle track car, a Pontiac Grand Prix with a 400 Pontiac, later a 428 Pontiac, and finally a 455 Pontiac. The case was a genuine GM PowerGlide case, and would bolt to a Chevy, a Pontiac, a Buick, an Oldsmobile, or a Cadillac, with no adapter. I had to have the case because there was a rule that stated no adapter could be used.

[Mark Yacavone]

Originally Posted by Alan Roehrich

Sorry Mark, but you are wrong. At one point, in the early seventies, there was a major fire at the plant where the 350 was built. GM made PowerGlides with multi fit cases to be installed in the place of the 350 transmissions in all GM cars. I actually had one of those transmissions in a circle track car, a Pontiac Grand Prix with a 400 Pontiac, later a 428 Pontiac, and finally a 455 Pontiac. The case was a genuine GM PowerGlide case, and would bolt to a Chevy, a Pontiac, a Buick, an Oldsmobile, or a Cadillac, with no adapter. I had to have the case because there was a rule that stated no adapter could be used.

Alan ,I know that . I've seen them. .........I'll take a couple . Could you send them to me?
Thanks for confusing the issue .Now all the 2 speed Tempests and GTO's on Ebay can still claim they have a Powerglide in them.

How about Canadian Pontiacs? Transaxle Tempests? Technically a PG, I guess.

Hey everybody , Alan is right. Mark is wrong .Got it?

[Bob Mulry]

Hey Mark,

And don't forget that the SuperTurbine 300 had a TH400 size output.

Bob

[Mark Yacavone]

Originally Posted by Bob Mulry

Hey Mark,

And don't forget that the SuperTurbine 300 had a TH400 size output.

Bob

Hey Big Guy, Thanks for some ancient history ,from an ancient....Never mind.

30 spline input too, so it takes a 350/400 converter where a PG does not.
That was the trick back then. Put a 6 cyl , ST300 converter in a T400 V8 car, and get about 2000-22000 stall.

[CrateCamaro]

If all the superstock guys are going to 3 speeds how could a powerglide be a faster trans in stock? You think a stocker motor makes enough tork to recover fast enough on the gear change with a glide? Turbo 350's seem to be the cheapest way to go. And you can't break the damn things...my trans builder built me 3 turbo 350's identical to eachother, one for my 9 second street car and two for my stocker. All stock internals except for the valve body, TCI sprag and some pump work. I can build 3 turbos (non lightweight) and have the same money invested in 1 powerglide. The gearset is what make it more expensive. Just my opinion.

[Alan Roehrich]

Originally Posted by Mark Yacavone

Alan ,I know that . I've seen them. .........I'll take a couple . Could you send them to me?
Thanks for confusing the issue .Now all the 2 speed Tempests and GTO's on Ebay can still claim they have a Powerglide in them.

How about Canadian Pontiacs? Transaxle Tempests? Technically a PG, I guess.

Hey everybody , Alan is right. Mark is wrong .Got it?

Mark, I don't have any, I got mine from my friend Jim Beattie at ATI.

I didn't confuse anyone any more than you did. You said NEVER. That was not correct.

Don't take it so personal. Got it?

[Alan Roehrich]

Originally Posted by CrateCamaro

If all the superstock guys are going to 3 speeds how could a powerglide be a faster trans in stock? You think a stocker motor makes enough tork to recover fast enough on the gear change with a glide? Turbo 350's seem to be the cheapest way to go. And you can't break the damn things...my trans builder built me 3 turbo 350's identical to eachother, one for my 9 second street car and two for my stocker. All stock internals except for the valve body, TCI sprag and some pump work. I can build 3 turbos (non lightweight) and have the same money invested in 1 powerglide. The gearset is what make it more expensive. Just my opinion.

I build my own transmissions, and it costs me more to build a 350 for Stock than it does to build a PowerGlide. Of course, for Stock we use the lightweight parts in both transmissions. But the 350 has twice as many drums. And a low gear set for a 350 ain't real cheap, either. I suppose if you just built a 350 with nothing other than the sprag, it might be cheaper than a PowerGlide with a low gear set, but then that's not really a fair comparison, is it?

[Mark Yacavone]

Originally Posted by Alan Roehrich

Mark, I don't have any, I got mine from my friend Jim Beattie at ATI.

I didn't confuse anyone any more than you did. You said NEVER. That was not correct.

Don't take it so personal. Got it?

No problemo.
I just didn't think that was a good time to muddy the waters with that little known fact.
Shoulda known I couldn't slip it by you.

[John Mason]

Alan and Mark,
Why can't you two get along as well while you're disagreeing with each other on this topic as you each do with others who have different political viewpoints?
Play nice.

[Alan Roehrich]

We're getting along fine. Since when do drag racers play nice?