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08-21-2017, 09:25 AM
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#1 |
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Registered User
 
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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IAC questions
I have a 94 GMC Suburban 2500 SLE 7.4l...I am in need of an IAC motor....There are 2 listed, a 10mm pintle and a 12mm pintle. How do I know which one is right? It appears the one that's on my truck now is an aftermarket one...did they put the RIGHT one in there? Or am I over analyzing this? Thanks.
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------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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08-21-2017, 05:36 PM
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#2 |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,620
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Re: IAC questions
The model 220 TBI for the big block engine (7.4 liter) has a IAC that is flange mounted with a 12 mm diameter dual taper pintle. The IAC for the 220 on the small blocks has a threaded mount with a 10 mm diameter pintle.
Edit: The Model 700 TBI unit used on the 2.5 liter has a flange mounted dual taper IAC like the big Block 7.4 liter, but the pintle diameter for the model 700 IAC is 10 mm
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For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too. Last edited by ChevyTech; 08-21-2017 at 08:51 PM. |
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08-21-2017, 06:51 PM
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#3 |
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Registered User
Join Date: Oct 2006
Location: Southern Kalifornia
Posts: 3,066
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Re: IAC questions
Thank You!
__________________
------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT |
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08-21-2017, 07:42 PM
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#4 |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,620
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Re: IAC questions
You're welcome!
__________________
For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too. |
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08-21-2017, 08:50 PM
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#5 |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,620
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Re: IAC questions
Additional information:
The Model 700 TBI unit used on the 2.5 liter has a flange mounted dual taper IAC like the big Block 7.4 liter, but the pintle diameter for the model 700 IAC is 10 mm.
__________________
For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too. |
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