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03-06-2007, 09:29 PM | #1 |
Registered User
Join Date: Nov 2006
Location: Maple Grove, MN
Posts: 149
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Transmission Controlled Spark Thermal Plug
I know everyone will scream WHY! when I ask this, but does anyone know what the part number was/is , or where I can buy the thermal switch that screws into the passenger side head that was part of the TCS system? I have a 71' Super Cheyenne 350 4bbl/TH350 that is 100% stock with 99% of everything working on it, other than me not being able to find this thermal switch to complete the TCS system and the truck. The TCS switch on the tranny was easy to find, but this switch I can't find anywhere.
I know it cuts fuel mileage, probably would hurt more than help,is regarded by most as useless, and probably wouldn't even work as intended but I'm a purist I guess and not being able to find this is driving me crazy. I found one on a Corvette parts site for the 71' Vette, but it operates a little different. I've looked everywhere and can't find one or the part number. If anyone knows how to help, I would really appreciate it. Thanks! |
03-06-2007, 11:29 PM | #2 |
Active Member
Join Date: Dec 2003
Location: Waterbury, CT
Posts: 591
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Re: Transmission Controlled Spark Thermal Plug
I'm in the same boat as you. I need one of those switches also. I guess there are a few of us purist around. I believe that although the switches look like a temp switchs they open the circuit when they reach temp as opposed to the temp switch that closes the circuit at temperature. If you get a part number let me know.
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03-07-2007, 12:14 PM | #3 |
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Join Date: Jan 2007
Location: Fairview, ks
Posts: 203
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Re: Transmission Controlled Spark Thermal Plug
Have you tried LMC, they seem to have most of the other switches.
www.lmctruck.com |
03-07-2007, 07:53 PM | #4 |
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Join Date: Nov 2006
Location: Maple Grove, MN
Posts: 149
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Re: Transmission Controlled Spark Thermal Plug
I've tried LMC to no avail. I really doubt that it is still maufactured. I was surprised Advance Auto didn't have it. It's amazing what they carry for our trucks mechanical wise. I think I might call that Vette place that sells the one for a 71' Vette and see who the manufacture is. I would think if they make it for the Corvette, they would make it for other models also?
I am fortunate to live in Kansas City, so if I need anything I just drive over to LMC, Chevy Duty, or Jim Carter. It's sad what I've spent with those 3. Thanks for the idea though! |
03-08-2007, 09:36 AM | #5 |
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Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: Transmission Controlled Spark Thermal Plug
Take a look at the one for the Chevelles. It looks like the right one. Ground Up Restorations have them, PN GAC-660.
Here is a link. http://www.ss396.com/ Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
03-08-2007, 12:28 PM | #6 |
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Join Date: Jun 2006
Location: Indiana
Posts: 4,859
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Re: Transmission Controlled Spark Thermal Plug
If it is the sorta temp gauge looking screw-in part, then I can look for the part number tonight. I just happen to have a 1970 version that will not be going back on.
PM me.
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'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
12-29-2015, 01:29 PM | #7 |
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Join Date: Dec 2015
Location: new Hartford ny
Posts: 51
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Re: Transmission Controlled Spark Thermal Plug
Does the wire powering the tcs have 12v constant when running? Can I use it to power my hei distributor? It seems fat enough..
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