C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

HEI versus stock distributor

Thread Tools
 
Search this Thread
 
Old Jan 5, 2008 | 02:17 PM
  #1  
Clue's Avatar
Clue
Thread Starter
Advanced
 
Joined: Jan 2007
Posts: 96
Likes: 0
From: Sandnes Norway
Default HEI versus stock distributor

What is the advantage going with a HEI dist over the stock dist?
Is there any at all? My stock is OK but I wonder if the HEI has an easier way to set up and control the timing advance curve.
Reply
Old Jan 5, 2008 | 03:33 PM
  #2  
FB007's Avatar
FB007
Burning Brakes
 
Joined: Dec 2007
Posts: 952
Likes: 0
Default

Distance between tune ups.
Reply
Old Jan 5, 2008 | 03:56 PM
  #3  
PETKAH's Avatar
PETKAH
Safety Car
15 Year Member
 
Joined: Feb 2006
Posts: 3,557
Likes: 0
From: Ridgeway VA
Default

In my '70 I put in a HEI with tach drive because the old distributor
was shot. The coil is in the head of the distributor. You would need
to get new spart plug wires and plugs - cause you're going from about
25,000 to 50,000 volts. Other than tune ups - I did not notice any
difference in performance between the two. If yours works keep it.
Reply
Old Jan 5, 2008 | 03:59 PM
  #4  
Clue's Avatar
Clue
Thread Starter
Advanced
 
Joined: Jan 2007
Posts: 96
Likes: 0
From: Sandnes Norway
Default

Thanks, and about the advance curve set up, will that be the same with the HEI as with the stock?
Reply
Old Jan 5, 2008 | 04:58 PM
  #5  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,380
Likes: 6,391
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

The stock points-type distributor is much easier to set up the advance curve on. It is very simply to alter the advance slot on the points distributor - the curve length is more difficult to alter and control on the HEI.
Reply
Old Jan 5, 2008 | 05:56 PM
  #6  
Aggitated Monkey's Avatar
Aggitated Monkey
Drifting
10 Year Member
 
Joined: Sep 2007
Posts: 1,572
Likes: 51
From: Wichita Kansas
Default

If you want to maitain a stock look with your stock distributor you could install a Pertronix system that replaces the points. I have found that they work very well and give you the best of both worlds as far as origional looks and HEI performance.
Reply
Old Jan 5, 2008 | 05:58 PM
  #7  
Clue's Avatar
Clue
Thread Starter
Advanced
 
Joined: Jan 2007
Posts: 96
Likes: 0
From: Sandnes Norway
Default

Thanks Lars
Is there any distributor where you can controle the advance curve in an electronic way? That would have been nice
Reply
Old Jan 5, 2008 | 06:19 PM
  #8  
lars's Avatar
lars
Tech Contributor
Supporting Lifetime Gold
25 Year Member
Conversation Starter
Photogenic
Top Answer: 3
 
Joined: Aug 1999
Posts: 14,380
Likes: 6,391
From: At my Bar drinking and wrenching in Lafayette Colorado
Default

Some of the new aftermarket units have electronically adjustable curves. I haven't tried one yet, and they don't come with tach drives... But it's very easy to set up your stock points unit, and once it's set up, there is no need for re-adjustment.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jan 5, 2008 | 06:35 PM
  #9  
Clue's Avatar
Clue
Thread Starter
Advanced
 
Joined: Jan 2007
Posts: 96
Likes: 0
From: Sandnes Norway
Default

OK, I have already ordered a springset from Summit and I will work on it. Hopefully it will turn out well
Reply
Old Jan 5, 2008 | 07:00 PM
  #10  
BigBlockTank's Avatar
BigBlockTank
Melting Slicks
 
Joined: Sep 2007
Posts: 2,429
Likes: 0
From: Tucson AZ
Default

Not knowing what my ignition was when I bought the car, I went with a MSD tach drive distributor, coil, and 6AL box. My car runs better than it has in a long time.(I stay in touch with the previous owners)
Reply

Get notified of new replies

To HEI versus stock distributor





All times are GMT -4. The time now is 03:01 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE