Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

What is the stock LS2 injector size?

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Old Feb 9, 2007 | 12:26 AM
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Default What is the stock LS2 injector size?

I am wondering what the stock LS2 injector size is. I am putting on a L76 intake and was wondering if the injectors are a different size than stock.


If so do I need a new mass-air meter for correct calibration.
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Old Feb 9, 2007 | 06:37 PM
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I think they are 32 lb/hr
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Old Feb 11, 2007 | 02:23 AM
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I was told i need the LS7 injectors but im not sure what size those are.. think 40.. not sure
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Old Feb 11, 2007 | 03:46 AM
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This is crazy, I would think someone could help me out. Nobody is running L92 heads/L76 intake on a stock LS2. I am trying to figure this out. I want to know what needs to be done mass air wise to make the new injectors work and what size cam I can run with the L92 heads milled .030.

I want to order a cam soon so please help,

Thanks.....Josh
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Old Feb 11, 2007 | 12:28 PM
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Josh, LS7's are 40. For more info/ specifics call Matt or Brian @ SDPC
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Old Feb 11, 2007 | 12:58 PM
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Josh,

Stock LS2 injectors (at least on the GTO) are 32 lb/hr. The L76 injectors (that come with the assembled intake) are 40 lb/hr just like the LS7 injectors (or at least that's what Scoggin-Dickey says. Hope this helps.
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Old Feb 11, 2007 | 05:01 PM
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Correct, LS2 ~ 32 and LS7 ~ 40. The complete L76 intake assembly come with the LS7 injectors.
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Old Feb 11, 2007 | 10:26 PM
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Thanks for clearing that one up Matt. Glad I got that one right!
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Old Feb 12, 2007 | 10:26 PM
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the ls2 is 32 lbs but they changed the plug. you can get an adapter from katech i believe.
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Old Feb 13, 2007 | 06:09 AM
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The plug changed from the GenIII motors to the GenIV motors. I believe he's already got an LS2, just changing intakes to the L76. His connectors should be the same.
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Old Feb 13, 2007 | 07:10 AM
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will my ls2 fuel rails go on a l76 intake?
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Old Feb 13, 2007 | 08:23 AM
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Yes sir, they will work perfect! In fact, the L76 complete intake comes with an LS2 fuelrail and LS7 injectors.

Originally Posted by 1bigcam
will my ls2 fuel rails go on a l76 intake?
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Old Feb 13, 2007 | 11:43 AM
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great b/c i just bought a intake from yous i want to keep my aftermarket fuel rails on my new motor, and put the ones that come with the l76 back on the ls2.
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Old Feb 13, 2007 | 07:21 PM
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does this mean some one has some extra ls2 injectors they want to sell?
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