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PCV setup
#1
I'm looking to set up a pcv setup on my 72, 532. Currently I have 2 open element breathers, and it seems my oil is getting dirty too fast.
Anyway, my carb is a not so street friendly holley 4150 hp. Which comes with no choke or provisions for vacuum connections. I have a plug directly beneath the carb, on the offy manifold. I'm figuring ill get a barbed fitting there, then replace one of my open element breathers with a PCV valve set up and run a 3/8 hose between the two. Anything I should know or do? Thanks
Engine shot for fun


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Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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#2
mach1460;33714 Wrote:I'm looking to set up a pcv setup on my 72, 532. Currently I have 2 open element breathers, and it seems my oil is getting dirty too fast.
Anyway, my carb is a not so street friendly holley 4150 hp. Which comes with no choke or provisions for vacuum connections. I have a plug directly beneath the carb, on the offy manifold. I'm figuring ill get a barbed fitting there, then replace one of my open element breathers with a PCV valve set up and run a 3/8 hose between the two. Anything I should know or do? Thanks
Engine shot for fun

Your engine bay looks eerily familiar. I am also running a 460 with the same valve covers. The issue I had was in finding grommets that would properly seal the pcv valve to the factory holes in the valve covers. I thought I had blowby problems because the dipstick would push out on hard acceleration and make a mess. It turned out the sloppy fit of the pcv valve/grommet in the valve cover was preventing the system from working properly. I found some oversize grommets which made for a tighter fit and solved the problem. I ran my pcv hose to a barbed fitting I installed in a carb spacer. As long as the hole in your manifold goes to the plenum it should work. By rights the breather should go to the air cleaner but I am using a breather as well and it works fine.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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#3
Did you have to drill your holes? I did- for the 200 I paid I shouldn't have. mine didn't come with baffles either. Anyway, the holes I drilled are about 1 1/4 (1.22 according to the micrometer) do you happen to know your hole size and what brand/part number grommet and pcv you used?

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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#4
The holes were drilled and baffles installed when I got them. I bought them from someone as having never been installed. They were still in the original packaging and I was under the impression they were not modified.

I don't have the exact sizes handy. I will check it out when I get home tonight and post up.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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#5
The hole I was able to measure was 1.26" +/-.

I don't recall specifically what pcv valve I used but it was for a high performance engine such as a B302 or 429CJ.

I got the oversize grommets here:

http://performanceunlimited.com/cobraval...thers.html

Be advised that the addition of a pcv valve may effect your carb tune as it introduces a controlled vacuum leak.

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.
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#6
I cannot tell from the picture (the old eyes are not what they use to be) but are those the "Ford Racing" or the "Motorsports SVO Power" covers?

I have a set of each and the "Ford racing" ones are not drilled but the "Motorsport SVO Power" ones are drilled and baffled. Of course, I purchased the "Ford Racing" ones new and purchased the "SVO" one from a member on another Site.

I don't know if that difference matters or not.

BT

Do the RIGHT thing.
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#7
Thanks ford the info, looks like I get to order some parts tonight. Thanks for the heads up also, ill let you know how things turn out.

There the motorsport covers. They have mounts for the baffles and a obvious area ( from the under side) where it should be drilled...

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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#8
Just as an observation from your picture, you should reverse the passenger side valve cover.The PCV system works better if you get a cross flow out of the system, just as Ford did.

[Image: 16kuyc0.jpg]
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#9
Good to know, i didn't know that. Maybe I can put my pcv in the front and drill a hole for the rear...Op

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
  Reply
#10

.jpg   PC250018.JPG (Size: 88.13 KB / Downloads: 121)
mach1460;33799 Wrote:Good to know, i didn't know that. Maybe I can put my pcv in the front and drill a hole for the rear...Op
That's the way Ford originaly had it.The factory 351 / 429 used the twist on oil fill cap with the PCV mounted in the cap. The passenger side uses a grommet with a 45 degree plastic elbow with a rubber hose running back to the aircleaner and connecting to the crank case filter. You can do this with an open element air cleaner by plumming underneath if you have room. Back in the day Mr.Gasket made an adapter for this.


I can't figure out how to post two pictures in my post,so here is the passenger side. "I so dumb"!


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.jpg   PC250015.JPG (Size: 94.41 KB / Downloads: 109)

[Image: 16kuyc0.jpg]
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