Throttle Body Question?

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Nov 8, 2002 | 04:15 PM

CG77VETTE

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Drifting

Joined: Jan 2001

Posts: 1,970

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From: Denville NJ

Throttle Body Question?

Can someone tell me if a stock '90 Throttle Body will fit a stock '86 L98?
Thanks for any help.

Nov 8, 2002 | 04:48 PM

65Z01

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From: SE NY

Cruise-In II Veteran

Re: Throttle Body Question? (CG77VETTE)

Though I don't know why, BBK shows one part number for the '84-'88 TB and another for the '89-'91 TB.

Nov 8, 2002 | 05:04 PM

CG77VETTE

Thread Starter

Drifting

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From: Denville NJ

Re: Throttle Body Question? (65Z01)

65Z01,

That is exactly what I am finding also :confused: The gasket kit is the same part # though. I don't get it.

Nov 8, 2002 | 05:11 PM

65Z01

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From: SE NY

Cruise-In II Veteran

Re: Throttle Body Question? (CG77VETTE)

Perhaps the idle air flow paths differ; note that the FelPro gasket kits usually come with two TB to Pelnum gaskets.

Nov 8, 2002 | 06:09 PM

PeteL

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From: And on the fifth day, subpoenas were served to Obama senior staff

Re: Throttle Body Question? (CG77VETTE)

I don't know what the difference may be, but you are welcome to my old TB out of my 89. It is no good (shaft to body wear), but you could compare to your's.

Pete

Nov 8, 2002 | 06:15 PM

Fatt Vette

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Joined: Nov 2002

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From: Stillwater OK, Fun City USA

Re: Throttle Body Question? (CG77VETTE)

The idle air paths are different, and as I recall the throttle linkage is different. The '86 is a straight pull and the '91 is progressive. I just put an '86 throttle body on a '91 engine in my '86 Z51.

Matt

Nov 8, 2002 | 08:37 PM

VetteRacer282

Drifting

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From: Las Vegas Nevada

Re: Throttle Body Question? (CG77VETTE)

The throttle linkage is different. Can be worked around with a new throttle cable (~$25). I will be doing this when I put my SR system on in the future.

If you know a good welder you could try to cut/weld the linkage between the two.
Matt

Nov 8, 2002 | 11:38 PM

CG77VETTE

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Drifting

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From: Denville NJ

Re: Throttle Body Question? (CG77VETTE)

Thanks for all the replies. Basically, I was looking into buying a used TB from a '90 with 24k to keep as a spare if mine ever goes. I figured I couldn't go wrong for $50. If I ever need one I will probably buy a brand new one.