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11-13-2008, 11:48 PM
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#1 |
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Blue 67
 Join Date: Apr 2004
Location: Western WA
Posts: 1,178
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Aother HEI question!
Hey guys:
Please be patient with me, I am slow learner (as some of you know by now!). I am reading all the HEI conversion threads but being me I am confused. I have this brand new mallory system which I got very cheap. It has the coil on top of the cap and also has 3 wires coming out of it:red, brown and black. My truck is 67 and ignition is on the dash then I assume I have inline ballast resistor with two wire set up which I have to delete them right?. Then do I connect the red wire from distributor to 12v ignition, black to the ground and Brown?!  Does anything go to the starter?Thanks for the help.
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1953 GMC 3/4 ton: current project 1967 C20: 5.3 voretc with T5 conversion, 4 wheel 8 lug disc brake 1972 Nova: my 4 door sport sedan! 5.3 voretc + T5 conversion. drivable project, FUN!! 1979 Camaro Z28: 5.3 vortec conversion with build TH350: drivable project, Fun to drive 1992 Camaro RS convertible (Z28 clone): 5.3 conversion with build T5: on going project 2005 Silverado 2500, 4x4 Duramax, original owner |
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11-14-2008, 12:01 AM
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#2 |
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Registered User
Join Date: Jul 2006
Location: Central PA
Posts: 12,201
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Re: Aother HEI question!
New 12v wire from the fuse box (switched), one is for the tach... shouldn't need a ground
I installed my Mallorey that way and it ran fine. Nothing new to the starter and terminate the original white coil wire (6V)
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The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer" Last edited by msgross; 11-14-2008 at 12:02 AM. |
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11-14-2008, 12:42 AM
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#3 |
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Registered User
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 15,456
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Re: Aother HEI question!
I have my HEI running off the unfused switched pin on the fuse block that msgross mentioned. The hardest part of the deal is figuring out where to push the wire through the firewall.
The pin next to the screw on the top in this drawing but side in the truck is the one I use. 
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11-14-2008, 01:27 AM
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#4 |
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Blue 67
Join Date: Apr 2004
Location: Western WA
Posts: 1,178
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Re: Aother HEI question!
Basically what I am undrestanding is :connect the red wire to 12 v and that's it? forget about brown and black wires?
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1953 GMC 3/4 ton: current project 1967 C20: 5.3 voretc with T5 conversion, 4 wheel 8 lug disc brake 1972 Nova: my 4 door sport sedan! 5.3 voretc + T5 conversion. drivable project, FUN!! 1979 Camaro Z28: 5.3 vortec conversion with build TH350: drivable project, Fun to drive 1992 Camaro RS convertible (Z28 clone): 5.3 conversion with build T5: on going project 2005 Silverado 2500, 4x4 Duramax, original owner |
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11-14-2008, 10:48 AM
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#5 |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Aother HEI question!
I just installed one on my 68. I have one 12vdc wire going into the distributor. That's it... No ground wire and no tach. The dis is externally grounded when it's bolted down.
But, I guess it wouldn't hurt to ground it, though... |
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11-15-2008, 12:10 AM
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#6 |
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I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Aother HEI question!
Search the FAQ's for member "shifty's" write up on doing a 6 cyl.HEI.He gives the part #'s and which spot in the electrical connector to wire it so it looks factory.I can't help on which wires go where but if you search for Mallory they would probably have a wiring diagram on their site.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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11-15-2008, 05:28 AM
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#7 |
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Registered User
Join Date: Aug 2008
Location: travis afb
Posts: 304
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Re: Aother HEI question!
This might be diff. I have a v8 and i took my 12v from the startes top post. It is a swithed 12v sorce in the run pos. It works well and i have been trouble free for about 8 mons.
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67 gmc 1/2 ton, 5.0 v6, 4 speed SOLD!! 70 Chevy C-10, 355, th400, 3.73's 2/4 drop |
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