Factory Correct Resto Corvette Restoration Tips, Bodywork, Numbers Matching, Period-Correct Modifications or Original Condition
Sponsored by:
Sponsored by:

1968 Transistorized Ignition Help

Thread Tools
 
Search this Thread
 
Old Aug 29, 2009 | 01:24 PM
  #1  
at3erdbase's Avatar
at3erdbase
Thread Starter
Instructor
15 Year Member
 
Joined: Aug 2005
Posts: 157
Likes: 0
Default 1968 Transistorized Ignition Help

Does anyone know what TI amp I should have "style and numbers"? I know they changed the style sometime in 1968.

I have the one that the pig tail plug screws into amp
I was told I should have the other type.

Does anyone know? Also,what is the correct coil numbers for the HP engine.

My cars trim is April 10 1968.

thanks 3b

Last edited by at3erdbase; Aug 29, 2009 at 06:42 PM.
Reply
Old Aug 29, 2009 | 06:45 PM
  #2  
richbates69's Avatar
richbates69
Cruising
 
Joined: Jan 2009
Posts: 11
Likes: 0
Default

I am having the same problem. I hope someone can help us both with this as I have no ideal of the change. My APM isnt clear
Reply
Old Aug 29, 2009 | 10:22 PM
  #3  
vettesbydesign's Avatar
vettesbydesign
Safety Car
 
Joined: Aug 2006
Posts: 4,102
Likes: 1
From: Forsyth Illinois
Default

I'm in a Econolodge somewhere in the middle of the US,but give me until Mon.,and have pics of correct 68-71 amps,and harnesses.I have 2 amp/harness set ups for sale that both work fine.
Reply
Old Aug 30, 2009 | 01:13 AM
  #4  
grantstigers's Avatar
grantstigers
Melting Slicks
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Jul 2004
Posts: 3,057
Likes: 219
Default

Originally Posted by at3erdbase
Does anyone know what TI amp I should have "style and numbers"? I know they changed the style sometime in 1968.

I have the one that the pig tail plug screws into amp
I was told I should have the other type.

Does anyone know? Also,what is the correct coil numbers for the HP engine.

My cars trim is April 10 1968.

thanks 3b
Hi 3b
68 Ti amp has the Ti harness with the plug that goes in or plugs into the Amp. There is no wires with a plug coming out of the amp. There is a part number but I have forgotten what it is. maybe I can find it later.

The other type if the wire harness is coming out of the Ti amp then it is for 69 and up only.
Hope this helps, Grant
Reply
Old Aug 30, 2009 | 01:18 AM
  #5  
grantstigers's Avatar
grantstigers
Melting Slicks
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Jul 2004
Posts: 3,057
Likes: 219
Default

Originally Posted by richbates69
I am having the same problem. I hope someone can help us both with this as I have no ideal of the change. My APM isnt clear
You Ti amp for a 69 should have the wires coming out of the Ti amp with a plug. The last 4 numbers on the Ti amp is 5343. 3b's 68 Ti amp should be 5005 I think,
Hope this helps
Grant
Reply
Old Aug 30, 2009 | 09:40 AM
  #6  
at3erdbase's Avatar
at3erdbase
Thread Starter
Instructor
15 Year Member
 
Joined: Aug 2005
Posts: 157
Likes: 0
Default

Are you sure?

I was just reading that there was in fact a later one although the article didnt give a number. It really said 65- e68 and l68 - 71 or was 72

I was told that the later amp with the screw in is cost a lot more then the earlier one and was used on a fer other cars and also planes

Thanks for the help so far guys

3b

Originally Posted by grantstigers
You Ti amp for a 69 should have the wires coming out of the Ti amp with a plug. The last 4 numbers on the Ti amp is 5343. 3b's 68 Ti amp should be 5005 I think,
Hope this helps
Grant
Reply
Old Aug 30, 2009 | 10:13 AM
  #7  
GDaina's Avatar
GDaina
Race Director
Supporting Lifetime Gold
20 Year Member
 
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Default

I will look at mine later and post the number. The coil should have 207 I think, I will also post the coil number
Reply
Old Aug 30, 2009 | 11:02 AM
  #8  
at3erdbase's Avatar
at3erdbase
Thread Starter
Instructor
15 Year Member
 
Joined: Aug 2005
Posts: 157
Likes: 0
Default

G thanks

Also let me know your cars build date from the trim as I am curious when the amp was changed in 68


Originally Posted by GDaina
I will look at mine later and post the number. The coil should have 207 I think, I will also post the coil number
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-1

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-2

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-3

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Aug 30, 2009 | 01:01 PM
  #9  
GDaina's Avatar
GDaina
Race Director
Supporting Lifetime Gold
20 Year Member
 
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Default

Originally Posted by at3erdbase
G thanks

Also let me know your cars build date from the trim as I am curious when the amp was changed in 68
Mine was built Oct 15, 1967
Reply
Old Aug 31, 2009 | 03:30 PM
  #10  
at3erdbase's Avatar
at3erdbase
Thread Starter
Instructor
15 Year Member
 
Joined: Aug 2005
Posts: 157
Likes: 0
Default

You have an early one then. I am trying to figure out when or if they changed the unit in late 68 and what month. Mine is April 10, 68




Originally Posted by GDaina
Mine was built Oct 15, 1967
Reply
Old Aug 31, 2009 | 04:17 PM
  #11  
JohnZ's Avatar
JohnZ
Team Owner
Supporting Lifetime Gold
20 Year Member
Veteran: Army
 
Joined: Oct 2000
Posts: 38,897
Likes: 1,918
From: Washington Michigan
Default

Originally Posted by at3erdbase
was used on a fer other cars and also planes
Never used on planes - they require an ignition system that's independent of external electrical power (magnetos).
Reply
Old Sep 1, 2009 | 10:49 AM
  #12  
at3erdbase's Avatar
at3erdbase
Thread Starter
Instructor
15 Year Member
 
Joined: Aug 2005
Posts: 157
Likes: 0
Default

I was just told that there was a late January rev on the harness and amp I was told the 64-68 1115005 was changed to the 69 style then? Does anyone know anymore about this and the new number? I was also told that the ignition was changed in march

Any confirmation on these ?

Last edited by at3erdbase; Sep 1, 2009 at 10:57 AM.
Reply
Old Sep 1, 2009 | 09:25 PM
  #13  
early shark's Avatar
early shark
Melting Slicks
10 Year Member
 
Joined: Nov 2004
Posts: 2,672
Likes: 6
From: Nevada City California
Default

Yes, I can tell you exactly when the changeover occured, as I have the original instruction sheet identification No. C-955511. This sheet showed how to cut connector from existing engine harness and discard and how to install the new plug that would work with the 1968 TI harness to plug into the 1111543 amplifier module.

This sheet was issued on 4-26-68. So all Corvettes equipped with K66 magnetic pulse transistorized ignition systems would use the 1111505 style set-up up to this date at least.
Reply

Get notified of new replies

To 1968 Transistorized Ignition Help





All times are GMT -4. The time now is 01:06 AM.

story-0
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-1
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-2
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-3
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE