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06-15-2008, 11:57 PM
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#1 |
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Registered User
Join Date: Jun 2008
Location: collierville,tennessee
Posts: 122
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wiring question
do the wiring kit work on engine swaps.my truck has a olds 350,but the truck needs to be rewired.need info hate to spend the money and it not work.thanks for the help!!!!!!!!!!!!!!!!!
heres the truck  heres the motor  and heres the chicken scatch wiring  
Last edited by 19gmc67; 06-15-2008 at 11:58 PM. |
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06-16-2008, 12:03 AM
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#2 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: wiring question
The only thing I can see is if your sensors are in a different location. Then the new harness may not mach up.
You probably don't have anyway to tell for sure what's different. You might just have to get one and extend any wires that don't match. s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. 
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06-16-2008, 12:59 AM
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#3 |
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Registered User
Join Date: Apr 2008
Location: Gales Creek, Oregon
Posts: 619
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Re: wiring question
Well as far as the engine the only thing you need to make it run is a starter wire (which should be in the same place since its still a GM motor) looks like you have an HEI on there. No wire for that in the factory harness anyway. and the alternator wiring which is long enough to run the alternator on either side. Usually if your running an externally regulated one and its working run it. If not switch to a single wire alt (add the wire) and run it to the battery following the factory harness over to the batt.
So rewiring your truck will fix other wiring issues but as far as the engine I don't think it is going to matter which engine you have in there you will be making or extending the same wires either way. but one other thing those fenders and that core support aren't going to work together. I did the same thing, Almost ready for paint and thanks to Andy I looked into closer. Those fenders wont work with the GMC grill that goes with that 4 headlight set up. Should probably pick 2 headlights or 4 before your wiring the headlights.
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There are two kinds of people, those who finish what they start and so on. 70 GMC Longhorn (A.K.A Money Bucket) 57 Chev 3100 05 Chevy LLY Dmax. 67 Chevy Camaro Dad's Budget Build 55 My Longhorn Build Last edited by Sinisterspeed; 06-16-2008 at 01:00 AM. |
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06-16-2008, 10:29 AM
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#4 |
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Registered User
Join Date: Jun 2008
Location: collierville,tennessee
Posts: 122
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Re: wiring question
thanks 4 the info,how would i go about wiring up the hei if there no wiring for in the factory harness.
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06-16-2008, 01:28 PM
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#5 |
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Registered User
Join Date: Apr 2008
Location: Gales Creek, Oregon
Posts: 619
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Re: wiring question
All you need for the HEI is 12v+ ign power to make it work. On the cap there is a square part that sticks off and has two terminals under it. The cap should be labeled in the plastic molding 12+(or batt)/tach. Thats it. just make sure you don't have 12v+ when ign is off or you will burn it up pretty quickly.
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There are two kinds of people, those who finish what they start and so on. 70 GMC Longhorn (A.K.A Money Bucket) 57 Chev 3100 05 Chevy LLY Dmax. 67 Chevy Camaro Dad's Budget Build 55 My Longhorn Build |
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06-16-2008, 01:43 PM
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#6 |
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Registered User
Join Date: Jun 2008
Location: collierville,tennessee
Posts: 122
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Re: wiring question
something like msd ignition box or something of that nature
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06-16-2008, 02:15 PM
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#7 |
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Registered User
Join Date: Jun 2008
Location: collierville,tennessee
Posts: 122
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Re: wiring question
bttt
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06-16-2008, 02:44 PM
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#8 |
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Registered User
Join Date: Jun 2008
Location: collierville,tennessee
Posts: 122
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Re: wiring question
bttt
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06-16-2008, 02:47 PM
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#9 |
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Registered User
Join Date: Apr 2008
Location: Gales Creek, Oregon
Posts: 619
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Re: wiring question
They are nice but not required.
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There are two kinds of people, those who finish what they start and so on. 70 GMC Longhorn (A.K.A Money Bucket) 57 Chev 3100 05 Chevy LLY Dmax. 67 Chevy Camaro Dad's Budget Build 55 My Longhorn Build |
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