Looking for NOS ignition switch and wire connector - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**paul blair** · 12-21-2023, 09:36 AM

I have been looking for NOS ignition switch and connector, found many but none said NOS or OEM. I found plenty cheep ones probably made in china. Any one here know where to buy the best quality available? Pic of what I am working on. I wonder if this is the off idle lag that happened some times? Thanks for any information! 1970 K/10

**HO455** · 12-21-2023, 02:09 PM

I can't remember if it was M&H or AAC wiring but, one of them sells connectors separately. I've seen both of their factory style replacement harnesses and they don't use the flexible Chinese ones.

Here is a thread I started on ignition switch failures. Currently I am of the opinion that a cleaned and inspected original or at least a replacement manufactured in the 70's is the best option. If no other option then reforming the contact shape on a new one may help curtail early failures.

I'm still using the Echlind replacement at present. But I should pull it out and do a inspection.

https://67-72chevytrucks.com/vboard/...d.php?t=818861

**Rust_never_sleeps** · 12-21-2023, 02:24 PM

not to derail the convo, but how does the switch cause off-idle lag?

**HO455** · 12-21-2023, 02:37 PM

I'm not sure it could but I've learned over the decades that I should never state something as an absolute. Oh I just did it again.

I will say there are a lot of other causes of an off idle stumble that I would look at first before I suspected a bad ignition switch.

**Rust_never_sleeps** · 12-21-2023, 03:36 PM

Quote:

Originally Posted by HO455

I'm not sure it could but I've learned over the decades that I should never state something as an absolute. Oh I just did it again.

Always true....except when it isn't ;-)

**paul blair** · 12-21-2023, 05:01 PM

Quote:

Originally Posted by Rust_never_sleeps

not to derail the convo, but how does the switch cause off-idle lag?

I was thinking loss or low voltage going to ignition circuit, but probably not. Will see if it goes away with a good switch.............

**paul blair** · 12-21-2023, 05:10 PM

Quote:

Originally Posted by HO455

I'm not sure it could but I've learned over the decades that I should never state something as an absolute. Oh I just did it again.

I will say there are a lot of other causes of an off idle stumble that I would look at first before I suspected a bad ignition switch.

Engine ran fine before the switch connector burnt, just trying to find a NOS, OEM or good quality replacement......Thank You for the M+H and ACC information, I will check them out.

**1970cstblazer** · 12-22-2023, 12:04 AM

Look on EBAY for both.

**MikeB** · 12-22-2023, 02:57 PM

I've used at least four switches that came with wiring harness kits. I don't know where they were made, but I've never had a problem with any of them. In fact, the switches in some of the American Autowire kits can handle more current than OEM, for example their 55-57 Chevy kit. Just finished up installing an AAW harness on my 69, and the included switch seemed just fine to me. Very stout feeling when switched through various positions.

Just looked for one in the AC Delco catalog, but they don't show it. Strange because that switch was probably used in most GM cars and trucks back then.

From what I see that's available, I would probably go with Standard Motor Products US84 (not the cheaper US84T).
https://www.rockauto.com/en/moreinfo...=4700&jsn=1240

**paul blair** · 12-22-2023, 03:44 PM

Quote:

Originally Posted by MikeB

I've used at least four switches that came with wiring harness kits. I don't know where they were made, but I've never had a problem with any of them. In fact, the switches in some of the American Autowire kits can handle more current than OEM, for example their 55-57 Chevy kit. Just finished up installing an AAW harness on my 69, and the included switch seemed just fine to me. Very stout feeling when switched through various positions.

Just looked for one in the AC Delco catalog, but they don't show it. Strange because that switch was probably used in most GM cars and trucks back then.

From what I see that's available, I would probably go with Standard Motor Products US84 (not the cheaper US84T).
https://www.rockauto.com/en/moreinfo...=4700&jsn=1240

Thank You MikeB for this information and your experience with AAW. I will check them out. Happy Trails

halfstep · 12-22-2023, 08:54 PM

This may be what you are looking for?
Original GM, made in USA ignition switch.
Can take another pic if necessary.
I have a few - stashed for years.
Message me if you want one.
If that's illegal, I'll have to buy in to post in for sale area.
LMK

**MikeB** · 12-23-2023, 01:57 PM

Quote:

Originally Posted by halfstep

This may be what you are looking for?
Original GM, made in USA ignition switch.

That's pretty cool!

**paul blair** · 12-23-2023, 04:13 PM

Quote:

Originally Posted by halfstep

This may be what you are looking for?
Original GM, made in USA ignition switch.
Can take another pic if necessary.
I have a few - stashed for years.
Message me if you want one.
If that's illegal, I'll have to buy in to post in for sale area.
LMK

Thanks for this information, I will PM you.

notsolo · 12-23-2023, 06:40 PM

And and old OEM connector probably 52 yrs old seams to be near perfect.

12-21-2023, 09:36 AM	#1
paul blair Senior Member Join Date: Jan 2016 Location: massachusetts Posts: 326	Looking for NOS ignition switch and wire connector I have been looking for NOS ignition switch and connector, found many but none said NOS or OEM. I found plenty cheep ones probably made in china. Any one here know where to buy the best quality available? Pic of what I am working on. I wonder if this is the off idle lag that happened some times? Thanks for any information! 1970 K/10 Attached Images

12-21-2023, 02:09 PM	#2
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,823	Re: Looking for NOS ignition switch and wire connector I can't remember if it was M&H or AAC wiring but, one of them sells connectors separately. I've seen both of their factory style replacement harnesses and they don't use the flexible Chinese ones. Here is a thread I started on ignition switch failures. Currently I am of the opinion that a cleaned and inspected original or at least a replacement manufactured in the 70's is the best option. If no other option then reforming the contact shape on a new one may help curtail early failures. I'm still using the Echlind replacement at present. But I should pull it out and do a inspection. https://67-72chevytrucks.com/vboard/...d.php?t=818861 __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

12-21-2023, 02:24 PM	#3
Rust_never_sleeps Senior Member Join Date: Jun 2022 Location: San Ramon,CA Posts: 401	Re: Looking for NOS ignition switch and wire connector not to derail the convo, but how does the switch cause off-idle lag? __________________ 1970 C10 Custom longbed 350/350

12-21-2023, 02:37 PM	#4
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,823	Re: Looking for NOS ignition switch and wire connector I'm not sure it could but I've learned over the decades that I should never state something as an absolute. Oh I just did it again. I will say there are a lot of other causes of an off idle stumble that I would look at first before I suspected a bad ignition switch. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban the WMB,1991 S(stink)-10 Blazer,1969 GTO, 1970 Javelin, 1952 F2 Ford 4X4, 29 Model A, 72 Firebird. 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

12-22-2023, 12:04 AM	#8
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,303	Re: Looking for NOS ignition switch and wire connector Look on EBAY for both. __________________ 1970 K/5 Blazer CST 4WD, Bronze, 93k ACT. miles, 350, 4 speed, positraction, 16.5" x 8.25" wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration in progress... 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 41k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 60k miles, 3.6, 8L45, 3.23 LS, 18" wheels

12-22-2023, 02:57 PM	#9
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,430	Re: Looking for NOS ignition switch and wire connector I've used at least four switches that came with wiring harness kits. I don't know where they were made, but I've never had a problem with any of them. In fact, the switches in some of the American Autowire kits can handle more current than OEM, for example their 55-57 Chevy kit. Just finished up installing an AAW harness on my 69, and the included switch seemed just fine to me. Very stout feeling when switched through various positions. Just looked for one in the AC Delco catalog, but they don't show it. Strange because that switch was probably used in most GM cars and trucks back then. From what I see that's available, I would probably go with Standard Motor Products US84 (not the cheaper US84T). https://www.rockauto.com/en/moreinfo...=4700&jsn=1240 __________________ Mike 1969 C10 LWB -- owned for 34 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 23 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

12-22-2023, 08:54 PM	#11
halfstep Registered User Join Date: Feb 2015 Location: Maryland Posts: 244	Re: Looking for NOS ignition switch and wire connector This may be what you are looking for? Original GM, made in USA ignition switch. Can take another pic if necessary. I have a few - stashed for years. Message me if you want one. If that's illegal, I'll have to buy in to post in for sale area. LMK Attached Images

12-23-2023, 06:40 PM	#14
notsolo Registered User Join Date: Apr 2008 Location: Md Posts: 2,451	Re: Looking for NOS ignition switch and wire connector And and old OEM connector probably 52 yrs old seams to be near perfect. Attached Images __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=635605



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