Throttle body gasket question...
Thread Starter
Member
Joined: May 2015
Posts: 495
Likes: 3
From: Washington State
Car: 1986 IROC Z
Engine: 305 TPI
Transmission: Auto
Throttle body gasket question...
My gasket kit came with both of these gaskets and if my memory serves me correctly when I took it apart there were two gaskets between the TB and the plenum. Am I supposed to install both of these??
Just want to make sure before I put her together, Thanks!
Just want to make sure before I put her together, Thanks!
Joined: Apr 2010
Posts: 513
Likes: 43
From: New Jersey
Car: 87 Monte Carlo SS
Engine: 89 350TPI Transplant
Transmission: 2004r
Axle/Gears: 3.73
Re: Throttle body gasket question...
The bottom gasket is for early throttle bodies. The top gasket is for later throttle bodies. Use one or the other, not both.
Supreme Member
Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: Throttle body gasket question...
IIRC, the top gasket is used with '88-'92 throttle bodies. The bottom gasket is used with '85-'87 throttle bodies.
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