LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

NOS 58mm Billet LT1 Throttle Body 20360NOS

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Old Nov 13, 2010 | 05:57 PM
  #1  
GenIIJR's Avatar
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NOS 58mm Billet LT1 Throttle Body 20360NOS

Does anyone have any info/experience with these TB's? If installed plugged without running NOS...? In other words if I have the NOS ports plugged would it function just like the Holley 112-509? They seem to be identical with the only exception being the "NOS" ports.... and, oh yeah; I made a low ball offer they accepted... So this sucker is here waiting installation. No real rush though 'cuz I am still paying for diapers for a while.

http://cgi.ebay.com/ebaymotors/ws/eB...SA%3AUS%3A1123

Last edited by GenIIJR; Nov 13, 2010 at 06:58 PM.
Old Nov 14, 2010 | 12:06 AM
  #2  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

Don't think it would pose any problems, but have no idea really......Can you say what you bought if for? I am looking for one myself.

Last edited by cthomson21; Nov 14, 2010 at 12:09 AM.
Old Nov 14, 2010 | 08:23 AM
  #3  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

The ebay listing indicates "Drilled for dry nitrous, injects nitrous behind throttle plates. Nitrous fitting can be capped for use on non-nitrous applications." Appears to be a normal Holley TB with a couple of holes drilled in it. It will work fine.
Old Nov 14, 2010 | 09:08 AM
  #4  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

>I would love one... looks awesome!
Old Nov 14, 2010 | 12:04 PM
  #5  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

Odd, because the one in the picture, although it has the "NOS" cover plate on it, is not the nitrous version. If should have connection on the left side (picture view) for the nitrous.

Other than the NOS plate, appears to be the same thing I've got from Holley:

http://www.injuneer.com/images/photo...e/DCP04253.jpg

From the JEG's listing:


Last edited by Injuneer; Nov 14, 2010 at 12:15 PM.
Old Nov 14, 2010 | 09:04 PM
  #6  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

I figured that it would work, just wanted some reassurance. I bought it for my Firehawk, and I have been shopping for a while. I want to get one for my Caddy too, but that build is several years away. Still cant believe I got it for $213...
Old Nov 15, 2010 | 01:06 PM
  #7  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

just got one for 198.00 bucks plus the shipping...I sure hope it works good, and I don't mind using dry nitrous, I'll PM you later Fred..since you run a Dry set up...I need help to make it work..
Old Nov 15, 2010 | 01:23 PM
  #8  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

Because of where the nitrous gets plumbed, I have been told you lose the IAC. Is that true?? Can you take some pictures and post them for us. I am curious as well.

TOM B
Old Nov 15, 2010 | 01:47 PM
  #9  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

Originally Posted by SSQATCH
Because of where the nitrous gets plumbed, I have been told you lose the IAC. Is that true?? Can you take some pictures and post them for us. I am curious as well.

TOM B
I don't have pics, But I can see where it might cause a problem installing the bottom portion of the TB, but I know that TPIS sells a IAC housing that won't interfere with anything..I plan on doing that just buying the housing from tpis.
here's a link
http://www.tpis.com/parts/view/28

Last edited by Jlo; Nov 15, 2010 at 01:48 PM. Reason: added a link.
Old Nov 15, 2010 | 02:23 PM
  #10  
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Re: NOS 58mm Billet LT1 Throttle Body 20360NOS

Originally Posted by Injuneer
Odd, because the one in the picture, although it has the "NOS" cover plate on it, is not the nitrous version. If should have connection on the left side (picture view) for the nitrous.

Other than the NOS plate, appears to be the same thing I've got from Holley:

http://www.injuneer.com/images/photo...e/DCP04253.jpg

From the JEG's listing:

my theory to that, as I was checking the contents of the kit was that it comes with a flare jet fitting and a 1/8 plug, I'm thinking the Pic on ebay probably has the flare fitting removed and the plug/cap installed...??? maybe
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