A little confused here on the pcv gromment pictures with the baffle in it. What is the purpose of it? Mine functions great without it, so I was wondering why it was needed as it would complicate the installation, which I always like to keep as simple as possible.   Maybe I was "lucky" !   Mike

     

I used a similar Moroso grommet/baffle combination some years ago with no problems. When I put the valley pan on a new larger motor with a high volume oil pump, I picked up enough oil off the dist. gear (apparently) to get a load of oil into the motor, cause detonation, and blow two head gaskets in two dyno runs, both on number 7.  I welded an aluminum baffle in underneath, with the holes pointing forward and have not had a problem since.  You can also buy an oil fill tube for a 69 Z28, plain or chrome, with a sealed fill cap and a bung for the PCV valve in that location.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ

 

Likewise for Me Dutchy, I have a PCV and grommet in a stock valley cover made for a breather and it comes too close to the back of my Edelbrock 3x2 intake. I wish I would of thought of this. 

   God Bless.   Tim                           http://yblockguy.com/

350ci Y-Block FED "Elwood", 301ci Y-Block Unibody LSR "Jake", 312ci Y-Block '58 F-100, 338ci Y-Block powered Model A Tudor

tim@yblockguy.com  Visalia, California    Just west of the Sequoias

Dutchy -  I like your approach to drilling and tapping the block for the PCV valve.  Thanks for sharing an alternative method for PCV valve installation.  Indeed a case where you were thinking outside the box cover.

Lorena, Texas (South of Waco)

Depending upon the grommet, sometimes the shielded opening is not quite large enough and I’ll have to take a razor blade and open it up some more. But I’ve never used these grommets in the valve covers either for breathers or for a PCV valve; have only used them in those instances where a PCV valve needs to go into a valley pan or at the rear of an intake manifold on other families of engines. I don’t have a part number for these particular grommets as I get them in an unpackaged state but I see them being sold by various vendors at swap meets. For the pictured grommet, I use a 1 1/8” hole saw but like with any grommet, I’ll measure it with a pair of calipers and then cut the hole as required. I’ve a bin full of different grommets and they require a multitude of different hole sizes.
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As far as PCV valve selection goes, I’ll simply pick out one for an engine of a similar cubic inch as the engine I’m fitting it to. For a Y, I’ll use a PCV valve originally designed for a 289 or 302 Ford. Depending upon the specific application I have in mind, I’ll get one with a straight or angled top so there are lots of options in this regard.

Lorena, Texas (South of Waco)

Nice work TED I like your style, Interested to know also what PCV valve you used, I purchased one for a 68 Camaro on ebay its a AC Delco part not a scrub part by the way, and fitted it, i drilled and tapped it 1/4 NPT into one of the early linkage mount holes in the block whilst I had the motor apart, I have checked the direction of flow and its correct as per the instruction sheet that came with it.

 

1957 ________________ Ford

\___((_______________))___/

(@)________V__________(@)

[________I_____I_________]

__[__]__ o_______o___[__]___



Y Blocks, The New Flathead!

Ted, have you used those grommets?  I used some and they were horrible.  They baffle well but they also add a significant restriction to the breathing ability.  I had two of those grommets with one breather in each valve cover and the pressure would blow the dipstick out a few inches.  Switching to the regular grommets fixed it.  But I do need to epoxy a baffle in there because a little oil is escaping. I think it's best to install a propper baffle and use regular breather grommets.


Lawrenceville, GA

Ted anyway that you could give us the part number to that grommet and the size of your valley pan hole for the grommet? What pcv valve do you recommend?

Not trying to hijack the thread - but would think others might want to know...

Dan

Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

Hey thanks Ted-it looks perfect, Delivery sounds fine. Engine is just now back in the car with other sewups to do. That's exactly what we talked about. Let me know what I owe you and I'l go ahead and send it.

       A  L  A  N   F  R  A  K  E  S   ~  Tulsa, OK    

Al.  How’s this look?  This is the cover you had drop shipped to me for mods.  Will ship out as soon as I come across a box big enough for shipping which should be early this week sometime.  And here’s also a pair of pictures of a PCV grommet with a built in baffle or shield which eliminates the need for a baffle to be attached to the underside of the valley pan.

 

Lorena, Texas (South of Waco)