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tpi or not

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Old Apr 1, 2008 | 02:49 PM
  #1  
kccisco's Avatar
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Car: 85 transam
Engine: 76 chevy 350 carb
Transmission: t-5 3.23
tpi or not

i have an 85 trans-am and everywhere ive checked it says that there is not 85 trans-am 302 that has a tpi and a manual. ive went around to a few mechanics that know a little more about this and they say that it is a tpi but when i check online it says that the 85 302 tpi would not accept a manual.
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Old Apr 1, 2008 | 02:59 PM
  #2  
mcgarnicle's Avatar
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From: erlangen, Germany
Car: 1991 Z28 1LE
Engine: LS1
Transmission: T56
Axle/Gears: 3.42
Re: tpi or not

welcome to tgo.

first, gm hasn't made a 302 since the 60's, you're refering to the 305 tpi.

And according to the firebird tech data on this site https://www.thirdgen.org/1985-pontiac-firebird
that is correct, the t5 was only available on the L69 and LG4 and V6 cars.
TPI is pretty easy to point out it looks like this:


If your car has tpi and a t5 it was more than likely put in by a previous owner.
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Old Apr 1, 2008 | 03:04 PM
  #3  
sofakingdom's Avatar
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: tpi or not

1. The 302's last year was 1969, and never came in the Trans Am at all (Chevy motor). None of those in 85.

2. In 85, ALL TPI F-body cars were automatic.

So yeah, no 85 302 TPI cars with a manual.

There's no reason that a TPI car, 85 or othereise, can't "accept" a manual trans. People put manual transmissions in auto trans cars all the time. GM simply chose not to offer that combo that year; possibly due to the expense and difficulty of emissions certification. That's only a guess though.
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