C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

HEI replacement

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Old Jan 8, 2023 | 08:57 AM
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Default HEI replacement

Whats a good plug n play replacement for the original C4 HEI distributor.
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Old Jan 8, 2023 | 09:07 AM
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Your taking a chance on any of them. But they are pretty simple units. Go to summitracing.com and look at the warranty and reviews. Then pick one.
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Old Jan 8, 2023 | 08:34 PM
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I have had good luck so far with this distributor
https://www.summitracing.com/parts/d...ette/year/1990

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Old Jan 9, 2023 | 08:15 AM
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That one looks nice but its more then I paid for my car. I am looking for a plug n play for around $150
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Old Jan 9, 2023 | 08:28 AM
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Originally Posted by johnfin
That one looks nice but its more then I paid for my car. I am looking for a plug n play for around $150
That is plug and play
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Old Jan 9, 2023 | 10:02 AM
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Originally Posted by johnfin
That one looks nice but its more then I paid for my car. I am looking for a plug n play for around $150
DUI does not come with a Mellonized gear, even though the part # is for a roller cam L98.
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Old Jan 9, 2023 | 10:22 AM
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Originally Posted by johnfin
That one looks nice but its more then I paid for my car. I am looking for a plug n play for around $150
Where the heck are you finding a Corvette for less than $300??? We need the story!
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Old Jan 9, 2023 | 10:30 AM
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Originally Posted by vinco
Where the heck are you finding a Corvette for less than $300??? We need the story!
Given his posts it sounds like he bought a real piece of junk.

Fortunately a great way to save money if you enjoy wrenching!
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Old Jan 9, 2023 | 11:44 AM
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I didnt buy the junk, it was given to me. Now its my teenagers ...father and son project... mostly my money.. his time. I figure I will spend $4k in a car that may be worth $2k.
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Old Jan 9, 2023 | 11:51 AM
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Originally Posted by johnfin
Whats a good plug n play replacement for the original C4 HEI distributor.
If it's just a replacement because the original is damaged, get a junkyard distributor. Are you looking for an upgrade?
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Old Jan 9, 2023 | 12:06 PM
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I have a few of these distributors from junk yards but the plastic parts that go thru the side housing are open and I dont really want to "goop" it up with RTV. I think one of the harnesses you can buy.... the one with the capacitor but the other one iam SOL. You would think with as many GM HEI cars out there someone would make parts for restoration.
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Old Jan 9, 2023 | 12:31 PM
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Oh, I think I saw this in another thread. Man I wouldn't buy a new distributor just for that. I think in the other thread someone mentioned "The Right Stuff", and believe me, that stuff is the right stuff to use. It'll only cost you $10 or $12 and do the same thing as the missing stuff.Use the money elsewhere in the build. Good luck!
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Old Jan 9, 2023 | 12:49 PM
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Originally Posted by johnfin
Whats a good plug n play replacement for the original C4 HEI distributor.
Any computer controlled HEI distributor from the junk yard.

Ain't much that can go wrong w/an HEI distributor.
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Old Jan 9, 2023 | 08:27 PM
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Never used right stuff BUT I have read on the electronics forums that you should never use RTV on bare wiring (which I have at the connector) There is a chemical in RTV that reacts with the copper wiring. So I am not sure whats in right stuff but I might try a sample of it.
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Old Jan 10, 2023 | 07:18 AM
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Originally Posted by johnfin
Never used right stuff BUT I have read on the electronics forums that you should never use RTV on bare wiring (which I have at the connector) There is a chemical in RTV that reacts with the copper wiring. So I am not sure whats in right stuff but I might try a sample of it.
Then the wires have chafed the insulation off, I see your concern, I wouldn't use that either. Buy a new pick up with the wiring harness and right stuff that into place.
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Old Jan 10, 2023 | 07:18 AM
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Originally Posted by johnfin
Never used right stuff BUT I have read on the electronics forums that you should never use RTV on bare wiring (which I have at the connector) There is a chemical in RTV that reacts with the copper wiring. So I am not sure whats in right stuff but I might try a sample of it.
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Last edited by SH-60B; Jan 10, 2023 at 08:23 AM.
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