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Old 10-27-2018, 04:32 PM   #1
short71
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Join Date: Jun 2017
Location: Vancouver
Posts: 14
Bulkhead wiring

Engine side bulkhead harness. My wires are different than the common wiring diagram showed, putting in an ls2 with psi harness what wires do I need to hook up and what wires are not used.
Green to new temp sensor.
Purple to starter.
Brown to break distribution block?
Black next to purple? It's only a foot long with black connector.
Large red wire? Same size as purple.
Thanks for the help.
Wiring has been so much fun!!
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Old 10-27-2018, 05:33 PM   #2
Ghost's68
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Join Date: Jun 2016
Location: American Canyon, CA
Posts: 253
Re: Bulkhead wiring

http://67-72chevytrucks.com/vboard/s...d.php?t=760071

Go through my thread. Tons of pics with descriptions needed.I just went through the same thing for my swap and I was able to get rid of all the unneeded wiring . If you got any questions shoot me a PM.
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Old 10-27-2018, 08:03 PM   #3
04ls1gto
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Join Date: Aug 2014
Location: Portsmouth ri
Posts: 363
Re: Bulkhead wiring

Lg red is power feed to inside of truck. Connect to battery or alternator with 40 amp fuse. Not sure about black
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