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06-01-2018, 05:31 PM
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#1 |
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Registered User
Join Date: Apr 2010
Location: cape coral florida
Posts: 18
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1990 454SS tach
I have a 91 tach dash to put in my 1990 SS truck. I have done these before but lost the repin info. I have been all over web sites looking for that repin info but cannot find it. Anyone remember?
Thanks Scott |
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06-02-2018, 05:54 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: 1990 454SS tach
To use a 1991 cluster in a 1990 truck, you have to move B15 to B11, A11 to A10, and A10 to A9.
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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. |
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06-02-2018, 06:03 PM
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#3 |
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Registered User
Join Date: Apr 2010
Location: cape coral florida
Posts: 18
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Re: 1990 454SS tach
Thank you very much. Which pin will serve the new lead from the tach?
Thanks Scott |
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06-03-2018, 10:13 AM
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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: 1990 454SS tach
You're welcome!
B11 Signal to the tachometer.
__________________
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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06-04-2018, 04:20 PM
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#5 |
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Registered User
Join Date: Apr 2010
Location: cape coral florida
Posts: 18
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Re: 1990 454SS tach
ChevyTech,
So your saying that the B15 connector that I'm going to move to B11 is a tach signal? I didn't think the 90 truck had an existing tach lead since it never had a tach? Thanks Scott |
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06-04-2018, 05:59 PM
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#6 | |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,620
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Re: 1990 454SS tach
Quote:
I have never done this swap and my notes were from other members input from the boards. If I can find some free time in the next few days I will do some research and post my findings here.
__________________
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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06-05-2018, 12:28 AM
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#7 |
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Registered User
 
Join Date: May 2006
Location: Santa Maria, Calif.
Posts: 781
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Re: 1990 454SS tach
I remember that there was an empty terminal wire right at the top of the coil. Used to be able to hook up a dwell tach to read the rpms working under the hood during tune-uos.
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1989 K1500 Chev. EC Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit. 2009 Hummer H3T 3.7L 5M (sold) 1997 K2500 Chev. EC 7.4L/ 4L80E 2018 Dodge Ram 2500 HD R/C |
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06-09-2018, 01:44 PM
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#8 |
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Registered User
Join Date: Apr 2010
Location: cape coral florida
Posts: 18
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Re: 1990 454SS tach
Works great. B15 on the dash plug was the tach signal port. Extra wire coming off the coil to feed the tach was ea
sy. I hope this thread stays alive so that others can find it and easily do this task. Thanks for all the help. Scott |
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06-09-2018, 10:29 PM
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#9 |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,620
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Re: 1990 454SS tach
You're welcome!
Glad it worked out well for you. Thanks for the update. The thread should be around for people to find with a search.
__________________
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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08-23-2018, 08:00 PM
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#10 |
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Registered User
Join Date: Jan 2001
Location: Russellville, Tn and DeLand Fl.
Posts: 533
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Re: 1990 454SS tach
Thanks all for this info, I am looking to replace the cluster on my 90 and was wondering what needed to be done.
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08-24-2018, 11:31 AM
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#11 | |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,620
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Re: 1990 454SS tach
Quote:
If you have any trouble doing your swap let us know.
__________________
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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