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Old 08-15-2020, 02:25 PM   #1
gmc684x4
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67 72 cs144 upgrade

Does the factory ammeter still work properly after cs144 upgrade ?

Getting my donar engine removed for my 68 i realized it has a new cs144 on it
Going to use it on my 72 as it will have its winch re installed on it
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Old 08-15-2020, 08:42 PM   #2
VetteVet
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Re: 67 72 cs144 upgrade

It should if the wiring hasn't been re routed as it usually is when converting to a internally regulated alternator. Most guys just run the alternator output wire directly to the battery positive post which by passes the wiring for the ammeter.
The alternator output wire should run to a main junction which has a charge wire back to the battery and all the other draws for the circuits should be connected there as well.

Here is a diagram



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Old 08-16-2020, 08:53 AM   #3
gmc684x4
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Re: 67 72 cs144 upgrade

Thanks Vic
That was my thoughts it should work

I remember when i was looking up cs upgrades it was suggested further changes where needed for the cs144

My harness already has been properly re worked to stock style si wiring i have picked up the eclin wire harness adapter with resister from napa

I like to make my wiring look factory
I started doing that 30 years ago as i fixed my 68 harness several times
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Old 08-16-2020, 09:05 AM   #4
gmc684x4
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Re: 67 72 cs144 upgrade

I am getting excited at getting closer to finishing my new roller cam 350 heads are at the machine shop

Changing the serpentine belt setup now that i realised the donar engine for my other truck has a new cs144 alternator but the mounts are different then the 92 c1500 setup i cleaned up

The 140 amp altenator will be better for the 4x4 with a winch
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