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36coupe · 02-22-2019, 07:53 PM

I think they are 1/4 npt thread so you would have to get a 3/8”x1/4” reducer bushing and i ran them horizontally with no problems. They also made them that flow in the opposite direction.

02-22-2019, 07:53 PM	#14
36coupe Senior Member Join Date: Oct 2012 Location: Eastcoast Posts: 864	Re: PCV valve I think they are 1/4 npt thread so you would have to get a 3/8”x1/4” reducer bushing and i ran them horizontally with no problems. They also made them that flow in the opposite direction.