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Need to know how to wire up a HEI distributor in a 400 small block chev and in a HZ one tonner wiring loom. (I LOST MY DIAGRAM)any help would be appreciated THANKS

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6ya6ya
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Posted on Jan 02, 2017

  • 169 Answers

SOURCE: need wireing diagram to change 72 nova over to hei distributor

Hey , just take the positive wire from the coil you are removing and feed it to the + terminal on the HEI dist. cap.the other terminal under there is for your tachometer. If you are mounting a master kill switch in the bumper for drag racing- attatch the kill wire to the tach terminal also.
Thats it you just plug the three wire pigtail from the dist. base(pickup) to the cap and you are off.
Remember firing order is 18436572 in a clockwise direction. to find #1 remove #1 plug and have someone"bump" the engine over while holding your finger over the hole-carefull. then line up the slotted mark on the crank pulley with the big notch on the timing indicator. Good luck

Posted on Aug 31, 2008

csmock132
  • 4669 Answers

SOURCE: 350 chev timing

What exactly are you working on. Are you wanting to know how to install a HEI distributor into a 1970's or 1980's small block chevy? Just wondering, it says 2007 cobalt?

Posted on May 15, 2009

motor1258
  • 6674 Answers

SOURCE: HEI DISTRIBUTOR PROBLEMS

This should help, firing order is counterclockwise, 1,8,4,3,6,5,7,2.c9602d8.jpg

Posted on Aug 24, 2009

  • 582 Answers

SOURCE: HEI DISTRIBUTOR PROBLEMS

on the intake manifold you will see 8 numbers, this is your firing order
from the front of the car the left side numbers are 1,3,5,7 and the right side are 2,4,6,8. now ont the distributor cap there should be a number 1 at one of the plug towers. you start there with #1 plug wireand continue.
on a chevy the firing order is 18436572 and this is the order you put the wires on the cap. now the second problem i don't know right off hand which way the rotor turns on your engine. so remove the cap and crank the engine over and see which way the rotor turns, this is the order you put the wires back on the cap. hope this helps

Posted on Aug 24, 2009

baugh55grfmj
  • 225 Answers

SOURCE: i need to see a diagram showing the cap on a hei

55a2f3f.jpg Here ya go.

Posted on Dec 26, 2009

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Chev captiva 2015 wiring diagram as vehicle has burnt out wiring


geee
2015 ....to new for a burn out thats bad luck

Chevrolet Captiva Wiring Diagram

hardwick.io/doc/chevrolet-captiva-wiring-diagram.pdf


if not an insurance claim

best solution for a burn out fix like that is
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Need a diagram for the spark plug wires from coils to spark plug


what kind of car are we talking? does it have a distributor. and one coil or coil packs. regular small block chev v8 fire order for a distributor is 18436572

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Wiring for a small block 350


need to know if its a HEI cap and rotor or not. HEI caps have the coil built into them , an all in one ignition as compared to a external cylindrical coil.
you need to know that. either the distributor cap is a huge hurken thing (HEI) or it has an external coil somewhere or the cap has a ninth distributor hole in the middle of the cap to put a coil. wire.
after you figure out which one it is then you have to either go to www.autozone.com and study chevy wiring or buy a haynes manual for the similar vintage engine. for the external coil I would try a chilton manual for a chev truck before 1972. for HEI anytime thereafter. I may be off by a few years on the age of the engine. but hopefully you got an idea of what to do, or just google chev engine wiring? and study away.
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Firing order on a 305 on the cap. Got the wires all messed up...


This method is good for the firing order on all chevy small block v8 engines from 265 cubic inches to 400 cubic inches. This would include 265, 283, 305, 327, 350, 400 cu. in. chevy small block v8 engines.

Let's cover some safety concerns first. If you try to troubleshoot a mixed up firing order with the engine running, you could be in for a serious shock,.. literally. You can do it, with certain precautions, but you really don't need to check the firing order with the engine running. You definitely don't want to try checking the firing order if you are wearing any kind of pacemaker or sensitive electromechanical prosthesis. The voltage coming out of the ignition coil is in the thousands. Common sense dictates that you wouldn't stick a knife in an electrical outlet, so you wouldn't want to take chances with being shocked by the electrical discharge from your classic chevy's ignition coil either. See the diagram:


5d6424a.png

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.

On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.

Additional details HERE.

Hope helps (remmeber rated this).

Jul 12, 2010 | Cars & Trucks

2 Answers

I took of*** my spark plug wires working on my small block 350 pickup and I don't remember the the firing order to put the new wires back on. Is there a diagram anywhere or is it even that difficult to...


Next time number each lead before you remove it and no. the dissy cap as well

The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.
On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.
See the diagram; Click to open a printable larger image in a new window. The firing order starts with the number one cylinder. We would connect the number one spark plug wire to the distributor cap terminal in the 6:30 position. distributor.pngSince the next cylinder in the firing order is 8 (passenger side rear), we connect the number 8 spark plug wire to the next distributor cap terminal (approximately 7:30 position) in the clockwise direction from number one. You need to be sure you continue the firing order in the clockwise direction around the chevy small block distributor cap from the last installed spark plug wire. Setting the rest of the firing order is just a matter of repetition. Be sure to count the spark plugs from front to back on each side of the motor to identify the correct cylinder number in the firing order.

Jun 21, 2010 | Cars & Trucks

1 Answer

Im looking for a wire diagram for a 1968 camaro it had a coil but now im useing a vacume distributor and dont know how much i can get rid of preferably a free diagram


That makes no sense to me, a vacuum operated distributor has the same single (primary) wire to the coil.

If you changed to an H.E.I. distributor then you need to find a good 12 volt key-on only source to run it, (hot only when key is in the run position and no voltage in the accessory position), and it should be at least a 12 ga. wire, you do not need or can no longer use the original power supply wires to the coil because the original resistor wire will not provide enough power flow to properly saturate the coil.

There is really not a lot of wiring on that vehicle, and you should put it into a loom and keep it out of the way if you do not want it. If you choose to return it to a stock condition later on, you will find it is not an easy task to repair or replace that older wiring. Keep it and hide it, you will not regret it later.

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'56 engine was likely a "blue flame" engine that had a points type ignition system. If someone installed a HEI setup in there, you need to know what year vehicle it came from. The old system used a hot wire from the ignition switch to the (+) side of an external coil...the (-) lead went to the points. The most common conversion uses the same (+) wire but it then connects to the "batt" terminal on the distributor cap.(coil is inside) There are no other wires involved except for the short harness that goes directly into the distributor that connects the coil, pickup coil and control module to each other..

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1 Answer

350 chev timing


What exactly are you working on. Are you wanting to know how to install a HEI distributor into a 1970's or 1980's small block chevy? Just wondering, it says 2007 cobalt?

May 15, 2009 | 2007 Chevrolet Cobalt Coupe

1 Answer

Need wireing diagram to change 72 nova over to hei distributor


Hey , just take the positive wire from the coil you are removing and feed it to the + terminal on the HEI dist. cap.the other terminal under there is for your tachometer. If you are mounting a master kill switch in the bumper for drag racing- attatch the kill wire to the tach terminal also.
Thats it you just plug the three wire pigtail from the dist. base(pickup) to the cap and you are off.
Remember firing order is 18436572 in a clockwise direction. to find #1 remove #1 plug and have someone"bump" the engine over while holding your finger over the hole-carefull. then line up the slotted mark on the crank pulley with the big notch on the timing indicator. Good luck

Aug 31, 2008 | Chevrolet Chevy Cars & Trucks

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