Tapped Valley Cover and Valve Cover Clearence on L92s

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03-30-2011, 12:44 AM

#11

Atomic

I have a gauge for that

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I kind of want to tap the cover and run it to a T off the driver side valve cover to a catch can and back to the intake with a breather on the driverside valve cover.

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03-30-2011, 01:26 AM

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Mangled03gmc

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Buy my fabbed ones, they will work just fine

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03-30-2011, 01:40 AM

#13

Atomic

I have a gauge for that

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Still havent seen a pic of the bottom :p

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03-30-2011, 01:56 AM

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Mangled03gmc

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Not sure what you wanting for the bottom.. But will have you a pic soon.. They should clear any roller set up, are atleast a 1'' taller then stock covers.

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03-30-2011, 07:50 AM

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JoeyGC5

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Quote:

Originally Posted by Atomic

So 2 questions;

1.) Will LQ4 Valve covers clear the stock rockers on L92 heads?

2.) Has anyone just tapped their valley cover and install a fitting and ran some line for the PCV system similiar to the LS6 style instead of just buying the LS6 stuff?

1.) Yes, but as noted all the baffling and a small bit of clearancing on a side rib need to be done to clear the stock ratio rocker arms. At least thats what I had to do on my 416's valve covers to fit the ported L92's.

2.) On my nitrous 5.3 motor I tapped and added a ls6 style nipple with no issues. I did use a breather on each valve cover and then choked down the line size from the valleyplate nipple to get rid of that slight oil smoke on startup and idle.