Difference between 88 and 89 throttle body?
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Pro
Joined: Jun 2018
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Difference between 88 and 89 throttle body?
I am looking for a new throttle body because I broke 4 of the little bolts in the coolant crossover on mine. I can probably drill them out, but that will be a PITA especially since I will be drilling steel bolts on an aluminum throttle body.
Looking at possible replacements I noticed BBk had one listed for 85-88 and a different one for 89-91, with the latter out of stock. Was wondering what the difference is.
Looking at possible replacements I noticed BBk had one listed for 85-88 and a different one for 89-91, with the latter out of stock. Was wondering what the difference is.
Last edited by auburn2; Jun 9, 2024 at 06:43 PM.
Drifting
Joined: Jan 2021
Posts: 1,312
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From: Northern California
I don't know about the BBK, but on the stock throttle body the accelerator cable linkage pivot is different from 88 to 89. There could also be a different IAC valve pintle seat taper shape but I don't know that for sure.
