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-   70-72 GTO Tempest & LeMans TECH (https://forums.maxperformanceinc.com/forums/forumdisplay.php?f=436)
-   -   1971 GT-37 455 HO M22 3:55 12 bolt Posi with factory spoiler (https://forums.maxperformanceinc.com/forums/showthread.php?t=869222)

Judge273 09-14-2023 04:45 PM

1971 GT-37 455 HO M22 3:55 12 bolt Posi with factory spoiler
 
I recently picked up this 12,000 mile from original owners family. Original owner had passed. He kept this car relatively private and I was lucky to get chance to buy. One of the most original cars I’ve ever seen or owned.

I had a detailer buff her out and get it cleaned up! I put my extra cragars wheels on it as the original tires had cracked and won’t hold air.

I also had to put on a new Gardner exhaust on it as original exhaust was not functional.https://uploads.tapatalk-cdn.com/202...ea16b6243.jpeg

thepontiacman 09-14-2023 05:37 PM

Very nice!

Sent from my moto g power 5G - 2023 using Tapatalk

johnta1 09-14-2023 05:38 PM

Very Nice!

Congrats on getting it, a real head-turner.


:)

tanksteve 09-14-2023 06:54 PM

beautiful find~!!

4birds 09-14-2023 07:50 PM

Wow! Nice score Mike. We're going to need to see lots of pictures!

Judge273 09-14-2023 08:04 PM

https://uploads.tapatalk-cdn.com/202...a540558be3.jpg
https://uploads.tapatalk-cdn.com/202...40fd545829.jpg
https://uploads.tapatalk-cdn.com/202...5a45661bb4.jpg
Some cool stuff

Shiny 09-14-2023 11:08 PM

Incredibly nice!

JSchmitz 09-15-2023 05:36 AM

WOW! Pretty car!!! Congrats!

'ol Pinion head 09-15-2023 08:13 AM

Loving it, Mike!

February Pontiac plant build?

1974SD455 09-15-2023 08:13 AM

Envious, I am 😎
Beautiful ride!

Cammer-6 09-15-2023 09:01 AM

any idea how many GT-37s with 455HO and 4speed were made?
Im guessing 3.90 rear?
Did you save the old exhaust for patterns and reference?

turbo69bird 09-15-2023 09:08 AM

That’s a spectacular find. I love the car and I love the cragars on it . That is exactly what it would have looked like in that period . Super cool ��!!! The colors are exactly what I’d want and the engine is great low compression big cubes high performance and drivable combo. Stock. . Great car. Thank you for sharing the pics really enjoy seeing it.

turbo69bird 09-15-2023 09:13 AM

If I had that car I would have Gary riely dry ice the bottom
Of it he’s done a great job on so many cars . I think but not sure they use flood penetrol on the panels after . That’s what a lot of hot rodders use to keep patina fro. Getting worse on rat rods . I use fluid film on my RAIV car bottom but it doesn’t look pretty. My RAIV is soaked in fluid film to try and keep it as healthy as I can here in the north east..

I kinda like it the way it is too because it’s part of its story and they are only original once but a little clean up isn’t bad either. That car would clean up amazing underneath w the dry ice blasting.

turbo69bird 09-15-2023 09:20 AM

https://www.yenko.net/forum/showthread.php?t=174827 Here’s a link

'ol Pinion head 09-15-2023 10:14 AM

Quote:
Originally Posted by Cammer-6
any idea how many GT-37s with 455HO and 4speed were made?
Im guessing 3.90 rear?
Did you save the old exhaust for patterns and reference?
Production of the '71 & '71 1/2 GT-37 equipped with the 455HO engine was 54

Long time associated production numbers by trans selection are estimated at:
34 Manual (M13 HD 3spd & M22)
20 Turbo 400

3.90 was a PONTIAC 8.2 10 bolt HD STT ratio in '71 & very rarely ordered in '71 Pontiac 400 4bbl performance A-body's (typ behind an M22).... 3.90's not factory avail in the 12 bolt. McKinnon assembled 12 bolts installed behind factory installed 455's & 455HO's in these cars carried either a 3.07, 3.31, or 3.55 gear ratio. Don't believe a documented airconditioned T400 '71 455HO T-37 or GT-37 has been discovered as of yet. Auto AC combination is where a 3.07 gearset would have been used.

Early owners that were class racing or local racing often had 4.10 or 4.33 gearsets installed as they were running much taller rear tires, often 29.5" tall 15" slicks. These owners also often converted their manual trans cars to T-400's or to 2.88 1st gear Power Brute T-10's.

kingbuzzo 09-15-2023 11:50 AM

Oh very nice...don't see those around especially with those options

gto4door 09-15-2023 11:59 AM

Congratulations! Beautiful car. Nice find.

Held for Ransom 09-15-2023 12:34 PM

I think I've seen that engine picture before...
And I like the look of the new Gardner exhaust. Did you keep the old exhaust or sell it to Eric?

Judge273 09-15-2023 12:50 PM

Kept the exhaust and hung on wall in garage.


https://uploads.tapatalk-cdn.com/202...8bee9361f8.jpg
https://uploads.tapatalk-cdn.com/202...bf9994e012.jpg


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KSZR 09-16-2023 08:47 AM

Wow! Nice buy.

Never seen one with a white top. Love the color combo. Honeycombs would be cool.


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