Author Topic: Official factory combinations data needed  (Read 323 times)

jpe

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Official factory combinations data needed
« on: June 10, 2018, 12:54:16 AM »
Is there any source for 'official' data for motor / transmission / rear end / brakes -combinations that factory did offer for 2 gen Firebirds? Similar that GM Heritage Center is for Chevy data.

To get 455 registered instead of original 400 here I need to show what combinations Pontiac did offer for 2 gens. So bacically I need to prove that 10 bolt rear and same brakes were offered for 455. I'm not sure if th350 was ever installed with 455 from factory, so I think th400 is needed but i have one.

firebirdparts

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Re: Official factory combinations data needed
« Reply #1 on: June 11, 2018, 10:14:11 AM »
I guess the parts books could work, but more obvious would be all the sales documents you can find (there are many forms of that).  The sales documents wouldn't tell you anything about special 455 brakes (since there's no such thing), but would that be enough info?  You typically don't see engine applications lined up in a table in the shop manual, but the shop manuals do vary a little bit.  You might find an emissions diagram in the shop manual that tells you that it was used on the F-body.  Maybe.

I think you are right about the TH350's not having been used with a 4-barrel 455.  I never really researched that.

Back years ago, when you sent off for PHS they sent you the AMA specifications for the car, which did include rear axle and brakes info in the sort of detail that would be ideal.
« Last Edit: June 11, 2018, 10:17:25 AM by firebirdparts »
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pancho400cid

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Re: Official factory combinations data needed
« Reply #2 on: June 11, 2018, 10:39:41 AM »
"The Definitive Firebird & Trans Am Guide: 1970 1/2-1981" by Rocky Rotella gives detailed info about what engines, transmissions, rear end ratio, etc. were available for what years, but not sure of that is "official" enough as it's not published by PMD...

https://www.amazon.com/Definitive-Firebird-Trans-Am-Guide/dp/1613253214
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jpe

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Re: Official factory combinations data needed
« Reply #3 on: June 11, 2018, 11:00:51 AM »
AMA specifications for a 400 and a 455 car with 10 bolt would be great if there is some source to get them. And I'll ask if this kind of book would be ok. The book would be the easiest solution if it's enough.

Thank you both.

roadking77

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Re: Official factory combinations data needed
« Reply #4 on: June 11, 2018, 12:35:11 PM »
Rocky probably knows more about these cars than GM did, his publications should be the rule, not the exception. However, if your states dmv isn't any better than MD good luck. They seem to throw common sense away.
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Re: Official factory combinations data needed
« Reply #4 on: June 11, 2018, 12:35:11 PM »

Jack

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Re: Official factory combinations data needed
« Reply #5 on: June 11, 2018, 02:48:36 PM »
I've never heard of a DMV wanting to know the specific engine or transmission combo... but you might want to try wallace racing, a lot of good info there.




Regards, Jack

jpe

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Re: Official factory combinations data needed
« Reply #6 on: June 11, 2018, 04:17:47 PM »
Here (Finland) we need to prove that drivetrain and brakes are the same what they offered with the bigger motor. If you can prove that you have better ones at some cases that is ok also. You need to show what motors were available and what were the combinations with them.

They don't normally approve any web page print outs, but a book might do it.

It's not as easy here if you want to have the bigger motor in papers. And if you don't you might get in trouble with insurance company if something happens.


Jack

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Re: Official factory combinations data needed
« Reply #7 on: June 11, 2018, 05:10:44 PM »
I see, I guess that makes sense.




Regards, Jack

Pontiac_SE

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Re: Official factory combinations data needed
« Reply #8 on: July 09, 2018, 11:48:17 AM »
We got similar rules here in Sweden.
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tase1979

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Re: Official factory combinations data needed
« Reply #9 on: July 19, 2018, 09:46:04 PM »
Here (Finland) we need to prove that drivetrain and brakes are the same what they offered with the bigger motor. If you can prove that you have better ones at some cases that is ok also. You need to show what motors were available and what were the combinations with them.

They don't normally approve any web page print outs, but a book might do it.

It's not as easy here if you want to have the bigger motor in papers. And if you don't you might get in trouble with insurance company if something happens.

What year you need MVMA?? sent me your email.

Re: Official factory combinations data needed
« Reply #9 on: July 19, 2018, 09:46:04 PM »
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