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Old 03-27-2011, 11:49 PM   #1
67chevy1series
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need help with wiring my engine so i can start it the first time!

like the title says... i need to know about the battery wire on the disrtibutor ( i have a hei or known as efi electirc module), the two wirs that go from the ignition to the starter and battery, one is purple and one is pink... where do these wires all go? i have a 302 (basically a 327)
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Old 03-28-2011, 12:20 AM   #2
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Re: need help with wiring my engine so i can start it the first time!

If you are using HEI you'll need to run a wire from a fused, key-on hot on your fuse box. The HEI will need 12V to run. I believe the purple wire goes to the starter solenoid. Pink should have been the original wire for the points distributor, but you won't need it if you are switching to HEI.
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Old 03-28-2011, 12:47 AM   #3
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Re: need help with wiring my engine so i can start it the first time!

does any body have any home made diagrams???? thank you dave!!!
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Old 03-28-2011, 12:50 AM   #4
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Re: need help with wiring my engine so i can start it the first time!

does the hei battery wire go ignition, fuse then to the battery or sratight fused and then to the battery?
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Old 03-28-2011, 12:57 AM   #5
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Re: need help with wiring my engine so i can start it the first time!

In my truck I added an additional fuse block under the dash and ran my HEI wiring from there. It isn't necessary to add a fuse block, my I didn't have many spades left on the original so it was easier to do it that way then have a nightmare of scotch locks and splices. I figured my truck had seen enough of that abuse over the years You can come off an unfused key-on hot and add an inline fuse, or use a fused key-on hot and skip the inline fuse altogether. Does this answer your question?

Here's a pic so get the general idea

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Old 03-28-2011, 01:00 AM   #6
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Re: need help with wiring my engine so i can start it the first time!

well my dad is doing most of the wirin because i am ... so hes got the wiring under control... he said, thew distributor has one wire coming off of it, does it go to the igniton first or the battery? thanks from the ricks!
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Old 03-28-2011, 01:01 AM   #7
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Re: need help with wiring my engine so i can start it the first time!

What color is the wire? If you are trying to wire an HEI dizzy, you can't use the factory wire as it wasn't designed to carry a full 12V. You will need to run a new line that is dedicated to the HEI distributor.
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Old 03-28-2011, 01:04 AM   #8
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Re: need help with wiring my engine so i can start it the first time!

the wire is red ,what color is the one wire that comes from the ignition to the battery?

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Old 03-28-2011, 01:08 AM   #9
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Re: need help with wiring my engine so i can start it the first time!

It might already be set up for HEI; not sure though. You will need to trace that wire back to the bulkhead and see where it's connected. Also, check it with a meter to see if it's a constant hot or only key-on hot. This will let you now if you can use it for the HEI without having to run a new wire.
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Old 03-28-2011, 01:12 AM   #10
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Re: need help with wiring my engine so i can start it the first time!

he says, what color is the ignition wire that goes to the battery? here is a pic of the pig tail we bought.... we will not be having a tach in my truck so the green wire isnt needed
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Old 03-28-2011, 01:18 AM   #11
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Re: need help with wiring my engine so i can start it the first time!

sorry if we keep going roundy rounds.... wiring is so confusing some times!
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Old 03-28-2011, 01:19 AM   #12
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Re: need help with wiring my engine so i can start it the first time!

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You need to run the RED wire from the HEI to the terminal marked "IGN UNFUSED" on the fuse block. That way the HEI gets juice whenever the ignition is on. Make sure you are plugged into the correct terminal on the HEI. I think one is marked IGN and the other is marked TACH on the outside of the cap.

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Old 03-28-2011, 01:22 AM   #13
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Re: need help with wiring my engine so i can start it the first time!

I'm not entirely certain but it doesn't really matter. You don't want to run the HEI directly off the battery anyway. As I said previously, you can either check the current that is passing through the red wire you spoke of earlier. If it's acceptable in regards to gauge and the amount of current that passes through it (12V), then just use it. If not, use an unfused ignition spade on the fuse box, wire in an inline fuse and splice into the connector that you showed in the pic.
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Old 03-28-2011, 01:30 AM   #14
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Re: need help with wiring my engine so i can start it the first time!

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Dave,

Unless I am mistaken I think the red wire he is referring to is the one on the plug in the package.

Here is a pic of the fuse block.

The wire from this terminal to the HEI is all you need.

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Last edited by LockDoc; 03-28-2011 at 01:33 AM.
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Old 03-28-2011, 01:32 AM   #15
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Re: need help with wiring my engine so i can start it the first time!

ok last question for you wonderful guys what size fuse do we need for the inline fuse? we got it all understood now THANK YOU DAVE2953 and LOCKDOC!!!!!!!!!!!!!!!!!
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Old 03-28-2011, 01:40 AM   #16
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Re: need help with wiring my engine so i can start it the first time!

I have a 20 amp in my truck. I think that would be sufficient for your application.
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Old 03-28-2011, 01:49 AM   #17
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Re: need help with wiring my engine so i can start it the first time!

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I don't have a fuse in the wire from the fuse block to the HEI on either one of my trucks...

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Last edited by LockDoc; 03-28-2011 at 01:51 AM. Reason: Wrong word
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Old 03-28-2011, 01:53 AM   #18
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Re: need help with wiring my engine so i can start it the first time!

ok well thank you guys alot!!!!!!!!!!!! this was the one thing that was stopping me from starting my truck today so tommorow i will sart it!
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Old 03-28-2011, 02:02 AM   #19
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Re: need help with wiring my engine so i can start it the first time!

No problem Rick.

I looked up a few older posts on the subject and the consensus seems to be what Dave recommended, 20 amp fuse. Maybe I will have to do that to mine...

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Last edited by LockDoc; 03-28-2011 at 02:03 AM.
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Old 03-28-2011, 02:05 AM   #20
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Re: need help with wiring my engine so i can start it the first time!

ya dave seems like he knows what h is doing with this hei stuff you did clear up the confusion my dad had with the wiring though
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Old 03-28-2011, 10:32 AM   #21
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Re: need help with wiring my engine so i can start it the first time!

I ordered a after market wiring harness from the firewall forward that was converted for HEI so it made it plug and play with proper gauge wire and everything to just plug directly to the HEI from new harness.
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Old 03-28-2011, 12:01 PM   #22
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Re: need help with wiring my engine so i can start it the first time!

while on the suject of hei dist. I found the coolest thing ever the other day. Corrected dist cap. One side has the odd cyl wires thhe other side even. No more spaghetti spark plug wires at the dist. I can't wait till they make a small cap for points dist
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Old 03-28-2011, 12:09 PM   #23
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Re: need help with wiring my engine so i can start it the first time!

Quote:
Originally Posted by brad_man_72 View Post
while on the suject of hei dist. I found the coolest thing ever the other day. Corrected dist cap. One side has the odd cyl wires thhe other side even. No more spaghetti spark plug wires at the dist. I can't wait till they make a small cap for points dist
does it work though?
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Old 03-28-2011, 12:12 PM   #24
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Re: need help with wiring my engine so i can start it the first time!

Quote:
Originally Posted by brad_man_72 View Post
while on the suject of hei dist. I found the coolest thing ever the other day. Corrected dist cap. One side has the odd cyl wires thhe other side even. No more spaghetti spark plug wires at the dist. I can't wait till they make a small cap for points dist

Hey Brad, I have one of those on the BB in the Blue '67. Seems to work fine and makes things look great.

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