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Post Info TOPIC: 75 grand am


Canadian Poncho Superstar!

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75 grand am


a friend of mine in cobourg has told me he wants to sell his 75 grand am,its a 455 with a 12 bolt rear,texas car.last i saw it ,it was black and need a repaint due to the texas sun.he told me he wants $4500it would be a sweet car for someone.


this pic isnt it but you get the picture

-- Edited by 68sd at 11:16, 2008-06-18

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A Poncho Legend!

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Wow  very nice    lets chip in, and buy it for Ray  hmm

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Uber Guru

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I am in for $10.

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Poncho Master!

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I'll go $20.

Seriously though, what are the details on this car?  Does the A/C work?  What is the interior like?  Mileage?  Engine strong?  Need anything to be certified?

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Hillar

1970 LS4 (eventually an LS5) Laurentian 2dr hdtp
-and a bunch of other muscle cars...


A Poncho Legend!

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Maybe Hillar is interested. We could cruise together and make a big splash when we arrive. biggrin

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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

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73SC wrote:

Maybe Hillar is interested. We could cruise together and make a big splash when we arrive. biggrin



I am a sucker for big blocks.wink



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Hillar

1970 LS4 (eventually an LS5) Laurentian 2dr hdtp
-and a bunch of other muscle cars...


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If it was a stick, I'd be interested. Never learned how to drive automatic!

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A Poncho Legend!

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Just a point of trivia, even in a 73 GTO, 4 speed was never offered with the 455 in these vintage A bodies.

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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




Poncho Master!

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73SC wrote:

Just a point of trivia, even in a 73 GTO, 4 speed was never offered with the 455 in these vintage A bodies.




You beat me to the punch, I was just going to post that.  In fact, there was only one year in which you could order the standard "D" port head 455 with a stick, that was 1970.  From 71 onwards, it was only the 400 or the 455 HO motors with the round port heads that could be ordered with manual transmissions.  My thought is that the regular 455, which was essentially a stroked 400 with longer rods, was not designed or appropriate for the high revving and rpms that stick cars usually experience.  The regular 455 really is a torque monster suited to an automatic transmission and that is why they were never really rated with much more horsepower than a 400.  In 71-72 they were essentially rated at the same horsepower, but at a lower rpm, and with much more torque.  I'm also guessing that Pontiac received an inordinate number of warranty claims for the 455 stick combos (given the number which was produced which was low) so they just decided that going forward, if someone was interested in stick performance they would order the HO motor anyway which was properly equipped to rev higher.



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Hillar

1970 LS4 (eventually an LS5) Laurentian 2dr hdtp
-and a bunch of other muscle cars...


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Looks like a good deal.

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A Poncho Legend!

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I'll will pay a tank of gas!

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A Poncho Legend!

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Astro Jet wrote:

 

73SC wrote:

Just a point of trivia, even in a 73 GTO, 4 speed was never offered with the 455 in these vintage A bodies.




You beat me to the punch, I was just going to post that. In fact, there was only one year in which you could order the standard "D" port head 455 with a stick, that was 1970. From 71 onwards, it was only the 400 or the 455 HO motors with the round port heads that could be ordered with manual transmissions. My thought is that the regular 455, which was essentially a stroked 400 with longer rods, was not designed or appropriate for the high revving and rpms that stick cars usually experience. The regular 455 really is a torque monster suited to an automatic transmission and that is why they were never really rated with much more horsepower than a 400. In 71-72 they were essentially rated at the same horsepower, but at a lower rpm, and with much more torque. I'm also guessing that Pontiac received an inordinate number of warranty claims for the 455 stick combos (given the number which was produced which was low) so they just decided that going forward, if someone was interested in stick performance they would order the HO motor anyway which was properly equipped to rev higher.

 



Just to clarify, you are talking A body only here, right? The F body still had it available starting in 73 I think it was.

 



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Canadian Poncho Superstar!

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ill get some pics and contact info this weekend

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A Poncho Legend!

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Carl Stevenson wrote:

Astro Jet wrote:


73SC wrote:

Just a point of trivia, even in a 73 GTO, 4 speed was never offered with the 455 in these vintage A bodies.




You beat me to the punch, I was just going to post that. In fact, there was only one year in which you could order the standard "D" port head 455 with a stick, that was 1970. From 71 onwards, it was only the 400 or the 455 HO motors with the round port heads that could be ordered with manual transmissions. My thought is that the regular 455, which was essentially a stroked 400 with longer rods, was not designed or appropriate for the high revving and rpms that stick cars usually experience. The regular 455 really is a torque monster suited to an automatic transmission and that is why they were never really rated with much more horsepower than a 400. In 71-72 they were essentially rated at the same horsepower, but at a lower rpm, and with much more torque. I'm also guessing that Pontiac received an inordinate number of warranty claims for the 455 stick combos (given the number which was produced which was low) so they just decided that going forward, if someone was interested in stick performance they would order the HO motor anyway which was properly equipped to rev higher.




Just to clarify, you are talking A body only here, right? The F body still had it available starting in 73 I think it was.



Yes, A body only.



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Ray White, Toronto ON

1973 LeMans 454 "Astro-Jet"

Built March 9, 1973 - Oshawa ON

1993 Corvette Convertible LT 1

Built January 10, 1993 - Bowling Green Kentucky 

 




Poncho Master!

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Just to add, in the middle of the 1974 model year, Pontiac discontinued the availability of all 455s in the Firebird.  Half way through the 1975 model year, they brought back the D port 455 only; the SD was gone forever especially after Pontiac's hanky-panky with it's emissions set-up.wink  Not many were sold and 1976 was last year the 455 was offered in the Firebird.

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Hillar

1970 LS4 (eventually an LS5) Laurentian 2dr hdtp
-and a bunch of other muscle cars...


A Poncho Legend!

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And don't forget, the mid year 455 was an "HO455" hmm

As if..........

They took advantage of the reputation of that engine and hung the HO on a regular passenger smogger engine.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars

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