TPI: '88 Throttle Body vs. 89 Throttle Body

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Feb 17, 2013 | 04:03 PM

MrPackstin

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From: Clarksville,TN

Car: 1989 GTA

Engine: 5.7 w/Paxton

Transmission: 700R4

Axle/Gears: 3.27

TPI: '88 Throttle Body vs. 89 Throttle Body

I am seeing people on ebay selling "85-88." Just wondering the difference, if any?

Feb 17, 2013 | 06:56 PM

Tuned Performance

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From: Mile High Country !!!

Car: 1967 Camaro, 91 z28

Engine: Lb9

Transmission: M20

Axle/Gears: J65 pbr on stock posi 10bolt

Re: TPI: '88 Throttle Body vs. 89 Throttle Body

the difference is the throttle cable linkage and 89-92 has the iac passage vacuum signal passage between the throttle blade bores and can be used on any year tpi plenum.

Feb 17, 2013 | 09:59 PM

vetteoz

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From: Not in Kansas anymore

Car: 82 Z28

Engine: 383 SP EFI/ 4150 TB

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Re: TPI: '88 Throttle Body vs. 89 Throttle Body

Quote:

Originally Posted by tunedperformanc

the difference is the throttle cable linkage and 89-92 has the iac passage vacuum signal passage between the throttle blade bores and can be used on any year tpi plenum.