What HEI to get - Chevelle Tech
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post #1 of 25 (permalink) Old May 15th, 19, 11:15 PM Thread Starter
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What HEI to get

I’ve been looking at the summit HEI to replace my old points style. They seem to have pretty good reviews and a reasonable price. Any thoughts or recommendations? Not looking to break the bank though. Also do they need an additional harness?

Also what plugs do you guys recommend for a mildly built 327?
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post #2 of 25 (permalink) Old May 16th, 19, 12:01 AM
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Randy
 
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Re: What HEI to get

ACDelco 93440806 GM Original Equipment Ignition Distributor, $167.99 at Summit.

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post #3 of 25 (permalink) Old May 16th, 19, 6:41 AM
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Re: What HEI to get

Quote:
Originally Posted by pnugene View Post
ACDelco 93440806 GM Original Equipment Ignition Distributor, $167.99 at Summit.
That's what I have in my 327. good so long as you weren't after a small body HEI.
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post #4 of 25 (permalink) Old May 16th, 19, 7:35 AM
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Re: What HEI to get

Do not do what I did. I bought a CHEEEEEPPPP H.E.I. and I was BROKE down all the time. Three times in one year and it ate modules.
Then I bought a new G.M. --H.E.I., Now and then I look to see if it is still in the engine. 39.000 miles in my 468 and many years of PERFECT service.
For a cruiser ,,driver or any hot rod.
A New G.M. --H.E.I. its the KATZ AZZ !
Bob
Also:
Wires that are black and fit PERFECT,, I used B.Block Suburban wires from
G.M. Pre made in correct lengths for a B.B. Looks dang near stock!


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post #5 of 25 (permalink) Old May 16th, 19, 8:06 AM
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Ed
 
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Re: What HEI to get

I have whatever the stock HEI that came with the ZZ4 back in 1996. It may even still have the same cap from then on it. Currently has somewhere around 33,000 miles on it over 20+ years. I plan on putting a small cap computer HEI from the 1990 donor truck I got the serpentine setup from, and having my FiTech control it.

1967 El Camino Malibu - Deepwater Blue
ZZ4 350, FiTech 600 complete!,Roadmaster tank, 700R4, Underdash A/C in progress, JGC Steering, 1990s truck serpentine.
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post #6 of 25 (permalink) Old May 16th, 19, 9:00 AM
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Re: What HEI to get

Im running Pertronix' in my two BBs.
Been a couple years now,no problems yet.

GenVI 454,Autogear M-22W,Moser 12 w/3.42s


'67 Malibu,468 w/TH400


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post #7 of 25 (permalink) Old May 16th, 19, 9:19 AM
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Re: What HEI to get

I have a summit HEI in my car its seems to be fine . I have also switched to a pertroninx in my old jet boat and LOVED it ! I have a good friend that is pretty knowledgeable and He really likes the DUI HEI .

72 Malibu Family Fun Car
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post #8 of 25 (permalink) Old May 16th, 19, 4:17 PM Thread Starter
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Re: What HEI to get

Great thanks for the help guys, I think I'll look into getting the ACDelco. I don't think I need a small body HEI, its a 327 with double hump heads, edebrock intake and carb

Any recommendations for plugs? Ive seen people run ACDelco as well or platinum plugs

Also, do I need the addition hardness for wiring?

1970 Chevelle
327/TH350, Bear 13" front, 12" rears, UMI upper/lower A arms, UMI front 1.25 sway bar, UMI rear upper/lower control arms, Ridetech drop spindle, Viking coilovers front/rear, 12 bolt, work in progress
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post #9 of 25 (permalink) Old May 16th, 19, 4:36 PM
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Re: What HEI to get

Quote:
Originally Posted by Tony70Chevelle View Post
Great thanks for the help guys, I think I'll look into getting the ACDelco. I don't think I need a small body HEI, its a 327 with double hump heads, edebrock intake and carb

Any recommendations for plugs? Ive seen people run ACDelco as well or platinum plugs

Also, do I need the addition hardness for wiring?
Run a power wire from the IGN terminal on your fuse block to the positive on the HEI - that's pretty much it. It's all self contained, so hook up is easy. As for spark plugs, I would just run whatever GM called for on your engine originally and gap them no more than .045 (.035 - .040 works on my 377).
OLDED likes this.

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post #10 of 25 (permalink) Old May 16th, 19, 5:04 PM
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Re: What HEI to get

I've had a used GM distributor from a ? (my parts stash) for around thirty years in my 69 396. I did replace the cap and rotor several years ago.

Probably hard to find a junkyard one these days though.

Quote:
Originally Posted by Robinls5 View Post
Do not do what I did. I bought a CHEEEEEPPPP H.E.I. and I was BROKE down all the time. Three times in one year and it ate modules.
Then I bought a new G.M. --H.E.I., Now and then I look to see if it is still in the engine. 39.000 miles in my 468 and many years of PERFECT service.
For a cruiser ,,driver or any hot rod.
A New G.M. --H.E.I. its the KATZ AZZ !
Bob
Also:
Wires that are black and fit PERFECT,, I used B.Block Suburban wires from
G.M. Pre made in correct lengths for a B.B. Looks dang near stock!
Was that the one that got all the bad reviews?

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post #11 of 25 (permalink) Old May 16th, 19, 10:13 PM Thread Starter
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Re: What HEI to get

Quote:
Originally Posted by WakkoWarner View Post
Run a power wire from the IGN terminal on your fuse block to the positive on the HEI - that's pretty much it. It's all self contained, so hook up is easy. As for spark plugs, I would just run whatever GM called for on your engine originally and gap them no more than .045 (.035 - .040 works on my 377).
Ok thank you. How about wiring a tach?

1970 Chevelle
327/TH350, Bear 13" front, 12" rears, UMI upper/lower A arms, UMI front 1.25 sway bar, UMI rear upper/lower control arms, Ridetech drop spindle, Viking coilovers front/rear, 12 bolt, work in progress
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post #12 of 25 (permalink) Old May 16th, 19, 11:06 PM
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Re: What HEI to get

A tach is pretty straight forward - hot, ground, tach lead (from tach output on HEI), and light. Hook the light lead to the LPS terminal on your fuse block.

1971 Malibu, factory buckets/full gauges/console, 377 roller cammed small block, Turbo 400, 3.42 10 bolt posi (Buick), - All your base are belong to us.
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post #13 of 25 (permalink) Old May 16th, 19, 11:09 PM
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Re: What HEI to get

Quote:
Originally Posted by Tony70Chevelle View Post
Ok thank you. How about wiring a tach?
There’s a spot for a tach wire on the cap next to the power wire terminal...

72 SS 402/4 speed/Straub roller and a bunch of Duramaxes.....
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post #14 of 25 (permalink) Old May 17th, 19, 12:23 AM
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Pertronix III for a couple of years now in my stock points distributor, zero issues runs great.
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post #15 of 25 (permalink) Old May 17th, 19, 9:36 PM
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Re: What HEI to get

I got a procomp one as a gift brand new from family, they are not car people but herd I was looking for a new dist. It did fine at first then had a random misfire after sitting for a month. I took it apart went through it and the housing was real nice, the vacuum canister was adjustable and did work fine. The pick up that came with it ohmed weird and was all over the place, I took a old computer controlled HEI off the shelf and stripped it used the gear and pic up from that Hei. Basically I had to rebuild the new unit with GM factory parts from a distributor I had on the shelf to get it to function to my liking. I have several OEM HEI's on the shelf, some work some are wore out but I have parts when I need them.

I have used the summit brand before and never had a problem with it, sold the car it was in so no long term use.
As for small cap I always us the cardon brand, their pickup can ohm funny though at times so have had to exchange one or 2 but they are life time warrenty and they are all just rebuilt factory units, not sure who makes their pickups though.

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