Are all upper plenums the same?
Thread Starter
Junior Member
Joined: Aug 1999
Posts: 25
Likes: 0
From: Dayton, OH
Are all upper plenums the same?
I have an 86 TPI Trans Am, and I am in the process of buffing the runners/plenum (in preparation for the Trans Am Nationals). Here is my dilema, I was able to borrow a set of runners from my friend, thus I was able to continue to drive my car while I was polishing the runners. But now I need a plenum to ploish. And my Trans Am is my only car.
SO, I am looking for a "loaner" plenum I can polish, and later install on my car.
My question is, are all upper plenums the same, and if not what years/models are compatable with my 86 TPI set up?
SO, I am looking for a "loaner" plenum I can polish, and later install on my car.
My question is, are all upper plenums the same, and if not what years/models are compatable with my 86 TPI set up?
Member
Joined: Jul 1999
Posts: 407
Likes: 0
From: Stuarts Draft, VA
Car: 88 GTA
Engine: modified L98
Transmission: 700r4
Axle/Gears: 3.27 9-bolt
Any 85-89 plenum will work for you. The 90-92's are different, they have provisions for the MAP sensor.
------------------
Scott
88 GTA L98
14.389 @ 95.2 mph, 2.001 60'
In search of the elusive 1.9 60 foot time.
------------------
Scott
88 GTA L98
14.389 @ 95.2 mph, 2.001 60'
In search of the elusive 1.9 60 foot time.
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