PCV System- Vintage Valve Covers

[Tom C.]

I am attempting to dress us the 400ci small block in my 64 Convertible. (sorry purists but it came that way). I would like to use the finned aluminum 327 valve covers and I will be installing an oil fill tube in the front of the aftermarket intake manifold which will have a breather cap. Does anyone have any ideas as to how I might further ventilate the crankcase (the 400 does not have a blowby tube)WITHOUT putting holes in the valve covers? Would it be possible to tap into the oil valley through the intake manifold and install a PCV between the oil valley and holley carb? I would appreciate your creative ideas.

[Phil P.]

Re: PCV System- Vintage Valve Covers

you would be way ahead to use 69 vintage finned valve covers---pretty much the same look and a lot less headaches---most novice lookers would not know the difference---just my 2 cents---good luck,phil

[John H.]

Re: PCV System- Vintage Valve Covers

Tom -

Yup, you can use a vented cap on the oil fill tube as the "intake" side, and drill a hole through the intake into the lifter valley (not into a runner) for a grommet and PCV valve, with a hose to the PCV port on the carb base. You'll need to fabricate a simple baffle to keep oil splash off the end of the PCV valve, or use a Moroso or Mr. Gasket baffled grommet for it.

[Terry R.]

Re: PCV System- Vintage Valve Covers

John that is an excellent installation!!!

[John H.]

Re: PCV System- Vintage Valve Covers

Terry -

Not my car, but a well thought-out solution to the late-block PCV issue.

[Tom C.]

Re: PCV System- Vintage Valve Covers

Thanks guys for your responses. I'm going with John Hinckley's thru manifold PCV setup.