hey brothers, i got me one of those proffesional products polished aluminum intake manifolds for my 350 (yeah yeah, i know, boring! whatever!) problem is it does not have a hole for a pcv. where do i put it? somewhere in the back i am ***uming. what do i use that is not too expensive or gay looking? i am also installing a oil fill neck(breather) in front. any advice on that? by the way all this is because my edelbrock finned aluminum valve covers do not have holes in them and they never will! thanx v8custom
i dont believe you can place a pvc on the manifold. it has vacuum. you need to vent the crankcase somehow. can you drill a hole in the side or rear of one of the valve covers? you dont really need a pvc anyway, its just for emissions and a very small economy boost. is there a way to hide a breather on your valve covers? you need to vent it somehow or the pressure will blow out your seals.
i've installed a PCV in one of those intakes. there is a spot right by the distributor in front of the coil where you can drill the hole without getting into the intake runner. check it out very carefully before you drill i also made a baffle and attached it to the underside of the manifold to keep oil from being splashed on the PCV valve. i attached it with some very small screws and JB weld you will have to put a hole in the front for the fill tube too...there is a boss there right by the water neck it's worked fine for about two years now
You do need a PCV valve on your 350. Without one, you'll always face annoying oil seepage from seals and gaskets because excess pressure in the crankcase. With a PCV valve, the vacuum will keep the oil from getting around the seals so easily.
i drilled & tapped my intake in the back near the coil mounting bosses. from there i used a 1/4 NPT elbow and a '65 corvette screw-in pcv valve. no baffle, but if i start to have problems i'll add one. i also drilled the front of the intake for an oil fill tube - the kind with the breather on top. valve covers have no breathers or fill caps. actually, come to think of it, tokyo did all the drilling. hope this helps, ed
I plumbed a PCV valve into my early Edelbrock tri-power manifold---somebody many years ago drilled a hole in the manifold next to the # 4 runner---i made up a fitting using two different fittings---then used an in-line PCV and hose---worked great
Thats a clean set up there. Im thinking the same thing would work as mentioned,under the stock ign coil bosses. Use a clear section of hose from homeless depot to make sure its not pulling oil,& go from there.
I took a couple of close-up pics of my PCV set-up---my manifold was drilled for this I think---I've seen 3 other manifolds with this hole---threaded already---the metal pipe in the hose is the PCV valve---Mopar I think.
All these guys are right regarding crank ventilation. That engine HAS to "breathe" in order to function properly! Looks like you gotta' whole lot of real savvy advice! This board is a great place for advice on just about everything comin' down the pike.
looks like you've already got a vented oil fill tube.. why the pvc valve? pvc valve? we dont need no stinkin pvc valve
The reason you need a PCV valve is to remove BAD AIR, the vented oil filler supplies GOOD AIR , the GOOD air comes in the front ,and a PCV valve is placed in the rear of the manifold.This provides "cross ventalation" if both were in the same place you would accomplish nothing.
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