Question about 1986 Chevrolet C1500

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350 chevy changed to HEI , need wiring diagram to hook it up .

I changed from a 305 chevy w/ EFI over to 350 w/ HEI , how do I hook up
HEI distributer , starter & alternater ?

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  • Anonymous Nov 30, 2008

    im wiring up a 350 need wiring diagram for the starter moter and electronic coil

  • dennisbarter Feb 04, 2009

    I am wirining an '86 Chevrolet 350 ignition coil and do not have the original clips that go into the distributor cap where the coil is mounted. I need to know the color codes for the wires that go to the positive and negative sides of the coil.

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  • 6 Answers

SOURCE: 350 Chevy starter wiring diagram needed

IF YOU HAVE A POINTS TYPE DISTRIBUTER, THE WIRING WILL BE: TO ENERGIZE THE STARTER SOLENOID A LARGE, ABOUT A NUMBER 12 OR 14 GAUGE WIRE WILL GO TO THE INNER MOST SMALL TERMINAL ON THE STARTER SOLENOID. IT MAY BE PURPLE IN COLOR. THE SECOND SMALLER WIRE SHOULD GO TO THE OUTER SOLENOID TERMINAL AND GO FROM THERE TO THE + TERMINAL ON THE IGNITION COIL. THIS IS FOR BY PASSING THE RESISTOR WIRE FROM THE STARTER IGNITION SWITCH. THE LARGER BATTERY CABLE WILL GO TO THE UPPER TERMINAL ON THE STARTER SOLENOID. THERE MAY BE AN ADDITIONAL BATTERY FEED WIRE TAKE OFF FROM THE STARTER BATTERY TERMINAL POST ON THE SOLENOID FOR OTHER ACCESSORIES. THIS TYPE OF SYSTEM (POINTS TYPE) WAS TYPICALLY DONE AWAY WITH IN 1975 WHEN THE HEI DISTRIBUTOR CAME OUT.

Posted on May 05, 2009

rockitman187
  • 2559 Answers

SOURCE: BELT DIAGRAM FOR 1984 CHEVY 305 CUBIC INCH

Hope this is what you needed.
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Posted on Feb 15, 2009

rick_amick
  • 69 Answers

SOURCE: small block chevy wiring

You should have a purple wire that goes to the starter,plus the red one from pos on battery. I believe you will have a red wire and a black w/red stripe or red/ w black stripe gong to the alternator.
As far as the distributor I think factory was a big pink wire. But you can also just run a wire from the fuse box that would only be hot with key in on position. If you need more help please ask.
Make sure you have your seat belt on and hang on to the steering wheel when you drop the hammer on that 383cu.
Good luck and enjoy.

Posted on Apr 07, 2009

  • 88 Answers

SOURCE: two wires go from distributor (350 chevy) to HEI

the heaver guage wire will be a power lead, the other if cheched while crancking will be a ecm pulsation for coil

Posted on Feb 11, 2010

  • 409 Answers

SOURCE: firing order diagram for a chevy 305. hei

firing order is 1-8-4-3-6-5-7-2 rotation is clockwise

Posted on Apr 26, 2010

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IF YOU HAVE A POINTS TYPE DISTRIBUTER, THE WIRING WILL BE: TO ENERGIZE THE STARTER SOLENOID A LARGE, ABOUT A NUMBER 12 OR 14 GAUGE WIRE WILL GO TO THE INNER MOST SMALL TERMINAL ON THE STARTER SOLENOID. IT MAY BE PURPLE IN COLOR. THE SECOND SMALLER WIRE SHOULD GO TO THE OUTER SOLENOID TERMINAL AND GO FROM THERE TO THE + TERMINAL ON THE IGNITION COIL. THIS IS FOR BY PASSING THE RESISTOR WIRE FROM THE STARTER IGNITION SWITCH. THE LARGER BATTERY CABLE WILL GO TO THE UPPER TERMINAL ON THE STARTER SOLENOID. THERE MAY BE AN ADDITIONAL BATTERY FEED WIRE TAKE OFF FROM THE STARTER BATTERY TERMINAL POST ON THE SOLENOID FOR OTHER ACCESSORIES. THIS TYPE OF SYSTEM (POINTS TYPE) WAS TYPICALLY DONE AWAY WITH IN 1975 WHEN THE HEI DISTRIBUTOR CAME OUT.

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