Difference Between TPI and TBI STBs
Thread Starter
Joined: Feb 2003
Posts: 1,229
Likes: 5
From: Albuquerque, NM
Car: 1966 El Camino Custom
Engine: 350
Transmission: 200R4
Axle/Gears: 3:73 12 bolt with Brute Strength
Difference Between TPI and TBI STBs
Is there a way to physically see the difference between a STB for a TPI and a STB for a TBI/Carb without mounting it? I have a Hotchkis unit and there is no part number to be found. The original box with the part number is long gone. To make matters worse, I just sold my car so I have no 3rd gen to try it out on.
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iTrader: (1)
Joined: Aug 1999
Posts: 2,842
Likes: 6
From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
Re: Difference Between TPI and TBI STBs
The TPI one's I've seen go straight across from one strut tower to the other, since there's no air cleaner in the way. The TBI/Carb ones I've seen form a triangle, and the cross bar comes farther forward than the strut towers, to clear the air intake. If you post a picture of it, I'm sure someone here will recognize it.
Supreme Member
Joined: Sep 2005
Posts: 1,951
Likes: 13
From: Ottawa, ONT
Car: 1987 Firebird
Engine: 355
Transmission: T56
Re: Difference Between TPI and TBI STBs
There is only one TBI brace that i know of. Its edelbrock 5227. The rest are TPI.
If it doesnt look like a 14" air cleaner will fit in the middle of it, it wont work. You can also get 3 point TPI ones btw.... If you post a pic, i could tell you right away what its for.
If it doesnt look like a 14" air cleaner will fit in the middle of it, it wont work. You can also get 3 point TPI ones btw.... If you post a pic, i could tell you right away what its for.
Thread Starter
Joined: Feb 2003
Posts: 1,229
Likes: 5
From: Albuquerque, NM
Car: 1966 El Camino Custom
Engine: 350
Transmission: 200R4
Axle/Gears: 3:73 12 bolt with Brute Strength
Re: Difference Between TPI and TBI STBs
Thanks for the input, fella's. Judging by your descriptions, I must have a TPI unit. Since I already posted the pictures on another thread, it won't let me post here but here is the link to the photos.
https://www.thirdgen.org/forums/engi...wer-brace.html
https://www.thirdgen.org/forums/engi...wer-brace.html
Thread Starter
Joined: Feb 2003
Posts: 1,229
Likes: 5
From: Albuquerque, NM
Car: 1966 El Camino Custom
Engine: 350
Transmission: 200R4
Axle/Gears: 3:73 12 bolt with Brute Strength
Re: Difference Between TPI and TBI STBs
That's a very helpful photo. Thanks.
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