C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Billet Valve Cover Oil Breather Question

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Old 10-07-2010, 10:53 AM
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Pete K
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Default Billet Valve Cover Oil Breather Question

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Last edited by Pete K; 06-12-2011 at 10:06 AM.
Old 10-07-2010, 11:20 AM
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engle1147
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Like this?

http://www.jegs.com/i/JEGS/555/50190/10002/-1

Old 10-07-2010, 11:26 AM
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Last edited by Pete K; 06-12-2011 at 10:07 AM.
Old 10-08-2010, 10:26 AM
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engle1147
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Originally Posted by Pete K
Found it!

Says for a ford but threads are threads so it might fit a chevy:

http://www.lightningforceperformance...ightning_.html

Old 10-08-2010, 11:23 AM
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Originally Posted by Pete K
I hope so. I contacted the seller for his specific recommendation, and I ordered the part number he provided. They list it as a universal thread in breather.
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWNX%3AIT
Looks the same as the one in my link except the Fleabay one doesn't come with a complimentary set of "nose plugs" for the installer to wear during the install.

Old 10-08-2010, 11:38 AM
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engle1147
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Originally Posted by Pete K
I just ran the part number on the manufacturers website. They say it fits screw in GM TPI, and they even list the vettes from 88 and up. Fingers crossed.
Well there you go.

When I saw this thread I thought you were building a super secret "7" monster - is that the case?

Old 10-08-2010, 12:58 PM
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C4fan
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St. Jude '10

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Originally Posted by Pete K
Not yet. I have alot of accumulated "stuff", and plan on continued selling to clean the garage, and build up funds. Next build will likely be as 421 cuber.
Would your "stuff" include a 2800 stall converter for a 93 700r4. I will be needing one for my 383. Please shoot me a PM if you can help. Sorry about the hijack.
Old 10-09-2010, 06:02 AM
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mseven
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Originally Posted by Pete K
I just ran the part number on the manufacturers website. They say it fits screw in GM TPI, and they even list the vettes from 88 and up. Fingers crossed.
is that -8 ? or npt ?...(I'm guessing you want that piece to be compatable with the bung on the new covers).
Old 01-04-2011, 03:42 AM
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grantar2
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So did it fit and run right?
Old 01-04-2011, 08:21 AM
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ndanl
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is there any good changing the cap with breathers ?
Old 01-04-2011, 11:47 PM
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Originally Posted by Pete K
Yup.
Thanks I ordered it today. Should be in by my next race.
Old 01-04-2011, 11:52 PM
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grantar2
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Originally Posted by ndanl
is there any good changing the cap with breathers ?
Only if you race your car. Because they are illegal on the road in California it will just go in my race box and when I get to the track and check my oil I will install the breather.

Running my car up against the redline repeatedly I see a sheen of oil on the valve cover where I am blowing past the cap. This also means I have a lot of pressure in the the valve train and the crankcase. All the back pressure isn't healthy for my seals, gaskets, etc. Some feel it can slightly slow acceleration as well, but I doubt could tell.

With shipping its almost $70 bucks, if I didn't think it would help the more last I wouldn't bother.
Old 01-05-2011, 12:17 AM
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blackozvet
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grantar2, be careful with those things when racing, I used one on my speedway engine once and it 'breathed' oil all over the headers !
Had to go back to a breather line with a catch can, not as pretty but a lot safer.
Old 01-10-2011, 10:29 AM
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Originally Posted by blackozvet
grantar2, be careful with those things when racing, I used one on my speedway engine once and it 'breathed' oil all over the headers !
Had to go back to a breather line with a catch can, not as pretty but a lot safer.
Thanks for the heads up.

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