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Topic Review (Newest First)
01-17-2013 04:06 PM
cobalt327 Nice... couldn't have been many made like that!

To have even one of them back would be something else. When I hear of guys finding a long-lost car, I'm always glad for them- I know what it would mean to me.
01-17-2013 03:03 PM
MARTINSR
Quote:
Originally Posted by cobalt327 View Post
The SP also had a two prong connecter, top terminal for the SP, bottom terminal was for the electric kickdown. Switch for that was at the throttle pedal.

I would probably have just ignored it except when I look at my Dad's handwritten notes and see that he has written something, I tend to believe him. Not that he didn't make some mistakes- who hasn't? But he was a BOP guy (especially P) and he knew his stuff. The last car he owned before he died was a '69 Impala SS 427. Now, IT had a TH400!
My mom had what was apparently a rare 68 Impala Convertible. It was a strippo outside of the convertible, nothing else. But had a 327 with a Quadrajet and a TH400! My dad bought it in 72 with 13K miles on it.

Brian
01-17-2013 02:45 PM
cobalt327
Quote:
Originally Posted by joe_padavano View Post
Understand, but the O.P. was concerned about a TH400 fitting in the tunnel, and I was trying to avoid any possible confusion over the fact that the ST400 is a TH400 and is externally identical except for the bellhousing bolt pattern.
Makes sense, thanks.
01-17-2013 02:43 PM
cobalt327
Quote:
Originally Posted by MARTINSR View Post
I always call it a ST400 because I'm a Buick nut. Like the factory chrome wheels of that time, they aren't "Rally wheel" (I'll punch you in the throat ) They are "Sport Wheels" or "Road wheels".

The 64 ST400 also didn't have the switch pitch converter that the 65 and later had which has a variable stall speed controled by a simple 12 volts to it raising the stall by about 500 RPM. It was controled by a micro switch on the throttle linkage at the carb. The idea being when you have your foot off the gas at a light the stall went up so the car wouldn't be "pulling".

Brian
The SP also had a two prong connecter, top terminal for the SP, bottom terminal was for the electric kickdown. Switch for that was at the throttle pedal.

I would probably have just ignored it except when I look at my Dad's handwritten notes and see that he has written something, I tend to believe him. Not that he didn't make some mistakes- who hasn't? But he was a BOP guy (especially P) and he knew his stuff. The last car he owned before he died was a '69 Impala SS 427. Now, IT had a TH400!
01-17-2013 02:38 PM
joe_padavano
Quote:
Originally Posted by cobalt327 View Post
ST400. That's what Buick called em and that's good enough for me. If it was a Powerglide inside, wouldn't matter- ST400 is what Buck called it and that's what I was saying in my post when I was "corrected". It seems that the shifting of the ST400 was different than a TH400 as well.
Understand, but the O.P. was concerned about a TH400 fitting in the tunnel, and I was trying to avoid any possible confusion over the fact that the ST400 is a TH400 and is externally identical except for the bellhousing bolt pattern.
01-17-2013 02:27 PM
MARTINSR I was just talking to my brother and he said the first problem with swapping the Chevy in is they don't have a center sump pan as the 401/425 in the Riv did.

Brian
01-17-2013 02:24 PM
MARTINSR My brother and I have an inside joke about that 64 shifting in that our dad use to call it "Rocking" the shifter and referred to it once in a while about the "good old days" and telling some story about racing a new Riv (he was a Buick salesman then) and "Rocking" the shifter.

Our dad was the greatest.

Brian
01-17-2013 02:21 PM
MARTINSR I always call it a ST400 because I'm a Buick nut. Like the factory chrome wheels of that time, they aren't "Rally wheel" (I'll punch you in the throat ) They are "Sport Wheels" or "Road wheels".

The 64 ST400 also didn't have the switch pitch converter that the 65 and later had which has a variable stall speed controled by a simple 12 volts to it raising the stall by about 500 RPM. It was controled by a micro switch on the throttle linkage at the carb. The idea being when you have your foot off the gas at a light the stall went up so the car wouldn't be "pulling".

Brian
01-17-2013 02:09 PM
cobalt327 ST400. That's what Buick called em and that's good enough for me. If it was a Powerglide inside, wouldn't matter- ST400 is what Buck called it and that's what I was saying in my post when I was "corrected". It seems that the shifting of the ST400 was different than a TH400 as well.

Quote:
The 64 also is lacking in controlling down shifts, it shift 3 times but only has a low and drive. If you want to hold it in each gear you start off in L, wind it up and shift to D, that puts it in second gear, now pull it back into L and that holds it in second, wind it up again and shift to D and you are in third. Here is the part I don't like, say you are driving in the mountains, the turns are tighter and slower, you drop in down to L holding it in second gear, then you have to slow down to about 25 mph to make a tighter turn and bam! it goes into low, then you faster, put it into D to put it back in second and and back to low to hold it there.WHEW! I drove a 64 Riviera everyday for 13 years so I know.
01-17-2013 01:06 PM
MARTINSR
Quote:
Originally Posted by cobalt327 View Post
Interesting page on the Buick transmissions, like used in your '64 Riv: Transmission Swaps & Modifications. Seems there were ST400's used in '64 Rivieras (guy says he drove one for 13 years, even describes the peculiar shifting of the ST400). Maybe Buick used both, but the TH400 wasn't mentioned.

LOL, I just PMed Moose with a link to that site, it's my brothers site and is a nationally known Buick Nailhead expert.

Brian
01-17-2013 01:05 PM
MARTINSR So did Aston Martin, RollsRoyce and I believe also Ferrari.

Yes they were all TH400's (called a ST400) from 64-66 behind the Nailhead, with the two speed being a ST300. The 64 was the first GM car to use it and they hid that it was a three speed by only putting 2 gears on the shifter. You rocked the shifter back and forth to get into low gear.


Moose,you have a private message.

Brian
01-17-2013 01:04 PM
joe_padavano And one more photo. Here's a nailhead-pattern TH400 that came out of a Jeep. Note the cast iron adapter ring leaning against the transfer case.

01-17-2013 01:00 PM
joe_padavano For those who still don't believe, the second page of this article has photos of the TH400 (aka ST400) with the nailhead bellhousing. Interesting trivia: AMC used these nailhead case TH400s in Jeeps with an adapter ring to bolt to AMC motors.

Nailhead Buick Switch Pitch TH400
01-17-2013 12:52 PM
joe_padavano
Quote:
Originally Posted by cobalt327 View Post
Seems there were ST400's used in '64 Rivieras (guy says he drove one for 13 years, even describes the peculiar shifting of the ST400). Maybe Buick used both, but the TH400 wasn't mentioned.
"Super Turbine 400" was simply Buick's marketing name for the TH400 when first released in the 1964 model year. The other available automatic (the two speed used in the A-body) was called the Super Turbine 300. Rest assured that the original trans in the 64 Riv was a TH400. I have seen these personally, with the unique bellhousing. It's a TH400.
01-17-2013 12:40 PM
cobalt327 Interesting page on the Buick transmissions, like used in your '64 Riv: Transmission Swaps & Modifications. Seems there were ST400's used in '64 Rivieras (guy says he drove one for 13 years, even describes the peculiar shifting of the ST400). Maybe Buick used both, but the TH400 wasn't mentioned.
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