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4V Intake Manifold

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Old 08-15-2014, 07:07 PM
Shadowrider123 Shadowrider123 is offline
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4V Intake Manifold

My 64 292 is bone stock as far as I know.

It has the pcv valve in the proper location with the proper hoses and tubes attached to it.

Im planning on a set of Speedway headers and a 4V with a 500cfm carb.

If I use a oem 4V intake manifold from an earlier year will I lose the pcv valve? Im guessing that earlier manifolds do not have the fitting for the valve.

Im not willing to give up the pcv valve or ant of the stock hardware so if the earlier manifold does not have the fitting for the valve, Im keeping the 2V.
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Old 08-18-2014, 08:08 AM
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How is your PCV routed now? There are plugs in most of 4 barrel intakes I've seen that you could route your PCV to. The part that is harder to come by is the valley pan connection.
Some Y Blockers add a spacer (drilled and tapped) under the Carb with the PCV connection pointed towards the back of the engine. Very similar to how the 70ish EGR valves were installed back in the day.
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Old 08-18-2014, 11:11 AM
Shadowrider123 Shadowrider123 is offline
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I got lucky when I bought my 64.

Everything is exactly as it was when it left the assembly line.

I have the pvc valve screwed into the 2V manifold just forward of the carb, a rubber hose connects it to the hardline, a second rubber hose connects the hardline to the fitting at the rear of the valley pan.

On the 50s era 4V manifolds I do not see the hole for the pcv valve in the manifold. I suppose that I could drill and tap the hole myself, Im guessing that it just goes into the plenum. Or, I could run the pcv valve into a fitting on the carb spacer.

I like the oem setup, its clean, uncluttered, and looks like it belongs there.

Another question: I see finned valley pans for sale, but not with the oil fill or fitting for the pcv.

How do you fill the crankcase?
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Old 08-18-2014, 11:58 AM
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You'd have to Have a Valve cover that would allow you to pour oil into engines with the aluminum valley pans. That's also where the air intake would be for the PCV. Or no PCV and just the slobber tube (aka Draft Tube) on the Driver's side of the engine. Later blocks didn't even have this ability because they didn't machine the blocks for it.
If you go 4 Barrel many of them have a port on the Carb for PCV.
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Old 08-19-2014, 04:05 PM
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I'm not sure about the pcv, I have a couple 4v intakes (not for sale). If you post a picture I can compare.

I think Mummert makes an aluminum pan with the fill tube and pcv/road draft provision. I don't think it's finned, though.
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Old 08-21-2014, 10:10 AM
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Quote:
Originally Posted by bjmayberry2 View Post
You'd have to Have a Valve cover that would allow you to pour oil into engines with the aluminum valley pans. That's also where the air intake would be for the PCV.
Or buy a aluminum valley pan with oil fill tube...
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Old 08-21-2014, 10:23 AM
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This one sold on eBay for $250.00 but no PCV in the back???

http://www.ford-y-block.com/valleycovers.htm Mumment has one WITH PCV.
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Old 03-25-2015, 04:42 PM
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Is there a pcv valve in the system? If not, what keeps raw vacuum from sucking oil out of the crank case?
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Old 03-25-2015, 06:57 PM
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The older engines had a road draft tube on the drivers side.

Click the image to open in full size.
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