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12-17-2010, 03:12 PM
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#1 |
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Registered User
Join Date: Nov 2010
Location: yakima wa
Posts: 90
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Power to HEI..for all you electrical gurus
My truck is a 1987 chevy half ton and i just swapped a 350 in it. I cant find the wire in the harness that sends 12v to the distributor
So should i run a 12gauge wire from the 'ign unfused' on the fuse panel to the distributor ? |
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12-17-2010, 03:17 PM
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#2 |
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Arrived on a Pale Horse
Join Date: Mar 2007
Location: SnagTown Indiana
Posts: 2,524
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Re: Power to HEI..for all you electrical gurus
You can, but fuse it.
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Jason 87 V30 350TBI/400 White w/Boss V-plow 89 R3500 CC SRW |
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12-17-2010, 03:32 PM
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#3 |
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Registered User
Join Date: Nov 2010
Location: yakima wa
Posts: 90
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Re: Power to HEI..for all you electrical gurus
alright will a 30a inline fuse work?...also i can find the ignition unfused in my fusebox?
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12-17-2010, 04:27 PM
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#4 |
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Registered User
Join Date: Dec 2010
Location: Burleson, Texas
Posts: 596
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Re: Power to HEI..for all you electrical gurus
thats a bit of overkill but would work fine.
The most I have read of HEI pulling was 7.5 Amp.... So 14 gauge wire and a 15 amp fuse would be more than enough for less than a 15' run of wire... (including length of ground path!) If you just have the 12 gauge on hand thats no problem, but I would run a smaller fuse. When a problem occurs, the faster the fuse blows, the better...
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Allengator Outta the Blue (my band - available for hire in the DFW area!) 1980 Chevy SWB Pickup (build thread) 1951 Chevy Sedan Delivery 2004 Chevy Tahoe Z71 2011 Harley Davidson Street Glide 2018 Silverado Z71 Crew Cab |
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12-18-2010, 04:06 AM
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#5 |
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Registered User
Join Date: Dec 2010
Location: sioux city, iowa
Posts: 619
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Re: Power to HEI..for all you electrical gurus
Make sure you have the right voltage. Older chevy's have less than 12v going to the distributer. I don't remember how much you need for an hei.
Last edited by rayfinseats; 12-18-2010 at 04:07 AM. |
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12-18-2010, 05:25 AM
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#6 |
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Account Suspended
 Join Date: Dec 2008
Location: Huntsville,AL
Posts: 2,119
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Re: Power to HEI..for all you electrical gurus
dont know if this will help
http://forum.73-87chevytrucks.com/sm...?topic=11766.0 http://www.73-87chevytrucks.com/tech..._V8_engine.jpg |
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12-18-2010, 05:32 AM
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#7 | |
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MadMan
Join Date: Nov 2010
Location: Hammond, La.
Posts: 490
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Re: Power to HEI..for all you electrical gurus
Quote:
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81" Shortbed C10 Full Restoration underway, who needs a budget?? LS Pro Touring Build |
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12-18-2010, 09:27 AM
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#8 |
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One shot, one kill.
Join Date: Dec 2007
Location: Saratoga Springs NY
Posts: 859
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Re: Power to HEI..for all you electrical gurus
Blackout, 87 had HEI. There must have been an HEI dist in it before the swap, right? OR did someone change out the dist? The feed wire should be a pinkish color 12 guage. I had a friend who swaped out motors and "lost" the wire you speak of. He found it as soon as he turned the ign on when a fuse link got smoked. The wire dropped down and got inbetween the tranny and the eng. Just some thoughts, jim
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1984 K20 350M engine with 465,000 miles. Well, it's finally done!! Almost 2 years of work, but it was really worth the effort. Little stuff left to do is mount winch, wet sand & buff out and build belly pan\running boards. Body work takes lots and LOTS of beer!!!! God, Guts and Guns made America and God, Guts and Guns will preserve it! The worst thing you could do is get into my sights, but that don't matter, you'll never know it, cause you'll never hear the shot  Jim or Paladin whichever you choose.
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12-18-2010, 01:07 PM
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#9 |
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Registered User
Join Date: Nov 2010
Location: yakima wa
Posts: 90
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Re: Power to HEI..for all you electrical gurus
Jim you are correct. They do have HEI dist but i couldnt find that wire to the dist so i was gonna make my own. but yesterday i found it tucked under the firewall, I plugged it in and motor fired up real nice after sitting a couple of years. Thanks Guys..well if i ever have a points distributor and switching to HEI i now know how to wire it!
Last edited by blackout; 12-18-2010 at 01:08 PM. |
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