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Old 04-05-2016, 10:39 PM   #5
solidaxel
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Join Date: Dec 2002
Location: Cactus Patch So. Az
Posts: 4,749
Re: what is needed to incorporate ls harness into stock wiring?

Quote:
Originally Posted by mongocanfly View Post
Ditto to what solid says..the ls stands alone just be sure to ground everything ( motor to frame, body to frame, motor to body, of course battery to motor..) you can't have to many grounds, but on your truck side harness you will still need power as well so dont forget to hook that back up to. I used the big red wire from the hei for my switch on power, the original starter wire from the key went right back on the ls starter and the hot side wire from the starter went back up to the 2 pole connector on firewall above distributor and that should keep all your truck electrical working and that's where I picked up my constant power.
That is exactly where I tied in my Hot and Switched

Temp gauge to pass side head
Oil sender to by pass in LS
Starter to ing. switch, same location
Alt lead went to the Alt

It really is that a plug and play system !
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