I built this fitting out of a copper 3-way tubing fitting, a big washer, and some JB weld. Rubber O-ring seals to the valley pan, rubber washer seals the bolt down thru the top - and the PCV valve is from a '64 292 truck motor.

 

I just pushed the hose over the threaded end of the valve - so the check valve is working in the desired direction....

 
 Steve Metzger       Tucson, Arizona

I did not have to do any mod to my valley cover.Try a PCV before you go banging on it.Do NOT overtighten when you put the cover on.Specs call for 2-3 ft/lbs which is just snug.Overtightening will distort the cover and leaks will occur.Make sure the cover is flat as possible before you install.Previous owners may have overtightened it,

  

Outlaw56,



You will likely have to drive down the threaded tube nut inside the baffle (that originally attached the draft tube) a bit, so the PCV valve will clear. Just make sure you don't warp the valley cover (unless you PLAN to seal it with RTV).

6 VOLTS/POS. GRD. NW INDIANA

If you get one for a Ford Mustang mid 60's with 289-302 should work.Take the pan with you to the parts store and get the PCV grommet to fit the hole and a PCV valve.The way you have described the setup is correct for a closed system.

  

Any suggestions on which PVC valve (part #) would fit this valley cover in a 254 YBlock with under 200 HP? If I understand correctly, a good choice is to install the PVC in this location and run a vent tube to the 1/2 fiber insulator/adaptor between the edelbrock 500 and the manifold. I could also add a vent tube from the oil fill cap to the bottom of the air filter. This would eliminate the road draft tube and provide a closed system, correct?

Darrell Howard Whitefish, MT Outlaw 56 Ford F-100's

The later model blocks varied as to what was supplied on the drivers sides of them for a road draft tube installation.  While some had no holes whatsoever provided for a road draft tube installation, others had only the outside tapped holes with no center hole while even others had all the required holes which was covered by a factory blockoff plate.  If the block doesn’t have the outer tapped holes for the road draft tube, the bosses are still there in which to drill and tap them into the blocks and facilitate the holes as being ‘blind’ threaded holes.

Lorena, Texas (South of Waco)

If there’s not a vacuum on the PCV valve, then it’s simply a path for excess crankcase pressure to be routed to the air cleaner if you’ve modified the valve to just be open all the time.  If not hooking it up to a vacuum source, it would be more effective just having the line going to the air cleaner without the PCV valve in place as the valve just becomes a restriction in the line at this point.  By design, PCV valves are intended to be hooked up to direct vacuum source so that excess crankcase residuals can simply be recombusted by the engine.

Lorena, Texas (South of Waco)

If I were to get a later 292 (60 to 64) is there even a place on the block for the earlier vent or will I have to drill the holes to mount it,it will be for looks only and not functioning.

Butchering up everything I can get my hands on in Dayton Ohio

The TBIrd parts suppliers have a kit which consists of a base plate with a nipple, valve and hose for both the A and B manifolds. It is designed top be used with the TBird valley cover, but can be used with the later car cover if the cover is like the TBird one.. Not sure about the truck cover. The later Fords had a spacer with a nipple, and you should be able to get that at a junk yard.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

I fixed the pcv valve always open, so it's a direct line.....will it still be inoperative? Gary

       

Gary, 55 Vicky, St. Germain, Wisconsin