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LS3/L92-L76 and Hoses on Intake

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Old 07-29-2009, 06:37 AM
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Default LS3/L92-L76 and Hoses on Intake

Hi!
I baught a new engine a while ago, and it is a LS3 with L92 heads and L76 intake, 92mm mechanical throttle body (Mechanical throttle cable, rest is electrical). When I was building the engine, I removed the intake, and now when I tries to mount it again, I have two hoses I don't know where goes.

I have one connection on the right side (Passenger side of engine) on top of the valve cover
I have one connection on the "valleypan" I think it's called, under the intake, also on the right side front.
I have one connection on the intake, behing the throttle body.
and one connection on the top of the throttle body.

The way I think it should be, is one from the Valve cover to the throttle body and one for "Valleypan" to the intake
or it should be Valve cover to Intake and "Valleypan" too the throttle body.

If anyone knows how it should be, please give me a replay.

Thanks

Morten Finsaas
Old 07-30-2009, 07:07 PM
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The connection from the vally cover goes to the intake manifold. It is usually a hard plastic flex line with snap on connectors on both ends.

The lines from the valve covers go to the fitting on the throttle body. The valley cover should have a fixed orfice the controls the flow of air/oil into the intake manifold and acts like a pcv valve.

At least that is how my LS3 is setup.

Hope this helps.

DJ
Old 08-03-2009, 04:46 PM
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What is the hose on the right with the quick connect go to?
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Old 08-03-2009, 04:55 PM
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Originally Posted by Petraszewsky
What is the hose on the right with the quick connect go to?
Im not sure, but on mine it´s not connected/blinded. But it is a vacuum hose, probably to original Fuel Pressure Regulator?
Old 08-03-2009, 05:02 PM
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So I can just take the hose off and plug it with no problems? Thanks for your reply I've been scratching my head over that hose for awhile now...haha..
Old 08-03-2009, 05:12 PM
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yeah, you should be fine just plugging the hole...
Your welcome. I have had some serius head scratching myself, and a quick and good responce is always welcome..
Old 08-03-2009, 05:40 PM
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A ton of PCV diagrams here. Let me know if this doesn't answer your question.

https://ls1tech.com/forums/generatio...outing-ok.html



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