pcv check valve

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04-13-2012, 11:33 AM

stealth355tpi

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pcv check valve

What's everyone using for a check valve on their catch can set ups? I've tried all the local parts stores and all they have is 1/8in. I need something like 5/16 for the pcv/ catch can hose.

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04-13-2012, 01:29 PM

The Alchemist

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You could use a one way check valve as well.

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04-13-2012, 02:11 PM

willizm

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I got a couple from boomba racing.

http://www.boombaracing.com/cv.html

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04-13-2012, 02:24 PM

JAX04

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i found a 3/8" one at advanced that is Sick, two pieces though, but it requires just a touch of pressure to close it, the spring in it is very very light. And it seals 100%.

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04-13-2012, 03:09 PM

LS1NOVA

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GM part #20861501 is a one way check valve with 3/8 barbs. Ive used it several times and its available at every GM dealer due to it being associated with a recall so they have to have it.