Best place for the 12v keyed power source - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72c10suburban · 01-15-2015, 03:18 PM

I've almost completed reworking my harness using the info from LT1swap.com. Where is the best place to hook up the 12 volt pink wire for the keyed power? I plan on hooking the ground and orange constant power wire straight to the battery. I'm assuming the pink wire would need to tie in to the ignition switch.

jackyl9999 · 01-15-2015, 03:32 PM

I believe mine was hooked into the fuse panel.

The battery distribution (little red box) on the positive cable where I got my constant power

**LockDoc** · 01-15-2015, 05:58 PM

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I don't know if it is the best place but the "IGN UNFUSED" connectors on the fuse panel are hot with the key on. Since it is unfused I would use an inline fuse or connect it to your LS fuse panel. I'm not sure about the size fuse to use but I would think maybe 30 amp. Someone will correct me if I'm wrong. (I hope)

LockDoc

**truckdude239** · 01-15-2015, 09:49 PM

I used my hei wire out of my ne2 harness to feed the lsx harness

ls1nova71 · 01-15-2015, 09:50 PM

Depends on where you mount your LS harness fuse box, but I would use the wire coming off the ignition switch that originally powered up your coil. Most of the circuits in the fuse box will lose power during cranking which will cause issues. If your LS fuse box is under the hood, I would get the original coil wire at the firewall junction block, you will need to change out the wire though as it is a resistor wire. If your LS harness fuse box is in the cab, then just come straight off the back of the ignition switch, it's the same wire, it just goes through the fuse box to the firewall junction block, it does not go through any fuses in the original fuse box.

dirtybowtie69 · 03-28-2015, 04:42 PM

Hi im looking for a similar answer i need to know what the male lead off the "cluster feed" is for and the mail terminal under the fuel ga. Terminal and glove box and spot lamp fuse. Sorry i tried uploading a photo but im still new haha thanks

01-15-2015, 03:18 PM	#1
72c10suburban Registered User Join Date: Jul 2013 Location: Calhoun Ga Posts: 87	Best place for the 12v keyed power source I've almost completed reworking my harness using the info from LT1swap.com. Where is the best place to hook up the 12 volt pink wire for the keyed power? I plan on hooking the ground and orange constant power wire straight to the battery. I'm assuming the pink wire would need to tie in to the ignition switch. __________________ 72 C10 Suburban 5.3/4L60 swap thread

01-15-2015, 03:32 PM	#2
jackyl9999 Registered User Join Date: Feb 2003 Location: Paragould, Ar Posts: 571	Re: Best place for the 12v keyed power source I believe mine was hooked into the fuse panel. The battery distribution (little red box) on the positive cable where I got my constant power __________________ 1970 Gmc Grande Sierra Swb 2wd LSX (LQ4/4L80e) 1990 K1500 Daily

01-15-2015, 05:58 PM	#3
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 25,346	Re: Best place for the 12v keyed power source - I don't know if it is the best place but the "IGN UNFUSED" connectors on the fuse panel are hot with the key on. Since it is unfused I would use an inline fuse or connect it to your LS fuse panel. I'm not sure about the size fuse to use but I would think maybe 30 amp. Someone will correct me if I'm wrong. (I hope) LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 -

01-15-2015, 09:49 PM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,217	Re: Best place for the 12v keyed power source I used my hei wire out of my ne2 harness to feed the lsx harness __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

01-15-2015, 09:50 PM	#5
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,118	Re: Best place for the 12v keyed power source Depends on where you mount your LS harness fuse box, but I would use the wire coming off the ignition switch that originally powered up your coil. Most of the circuits in the fuse box will lose power during cranking which will cause issues. If your LS fuse box is under the hood, I would get the original coil wire at the firewall junction block, you will need to change out the wire though as it is a resistor wire. If your LS harness fuse box is in the cab, then just come straight off the back of the ignition switch, it's the same wire, it just goes through the fuse box to the firewall junction block, it does not go through any fuses in the original fuse box. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

03-28-2015, 04:42 PM	#6
dirtybowtie69 Registered User Join Date: Feb 2015 Location: Ft. Wainwright, Ak Posts: 3	Re: Best place for the 12v keyed power source Hi im looking for a similar answer i need to know what the male lead off the "cluster feed" is for and the mail terminal under the fuel ga. Terminal and glove box and spot lamp fuse. Sorry i tried uploading a photo but im still new haha thanks



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