Ford/Rock Auto PCV Valve Part Number

I think I found it. Pictures look identical to PCM part.

https://www.rockauto.com/en/moreinfo.php?pk=383106&cc=1134076&jsn=65421&jsn=65421

This is used on a 93 Mustang.

Canuck-Surfer wrote: I think I found it. Pictures look identical to PCM part. https://www.rockauto.com/en/moreinfo.php?pk=383106&cc=1134076&jsn=65421&jsn=65421 This is used on a 93 Mustang.

Maybe somebody will take a picture of what came out of a late 90's PCM 351.

It would look something like this   



If you look at Rock Auto at let's say an 84 F250 with a 351 they lists this PCV. (the EV68)

Look at the same 84 F250 with a 302 and it lists the EV 98

What's the difference? beats me, it might be the size of the nipple the hose hooks to or maybe a flow rate difference.

I'd go with the 68, but that's just me

Roughly 6 bazillion other Ford applications use the EV 68 too. It's been used for a lot of years on a lot of vehicles

and probably the same number use the 98

I don't have any of my books with me nor do I have any pictures but it does not connect up to the oil filler neck- it needs a vacuum source which would be most likely the upper intake. The oil filler neck goes the flame arrestor.

Gary S wrote: I think it goes to lower left fitting-

I'm thinkin' like Gary that it goes to that circled fitting in the lower corner...... but whether it's left or right, I'm a little confused.

So PCV valve at back of intake with a short hose to that circled connection.

Up front like Gary said, hose from flame arrestor goes to the oil fill tube.

Air goes into the engine from the arrestor to the fill tube, through the crankcase , out the PCV and back into the intake at that circled fitting with the intake vacuum being the motive force to draw air through the PCV.

Gary S wrote: D'oh and that is what happens when you don't check your work. Your absolutely right Ken on the fitting I circled

That just means you'll get me next time

Canuck-Surfer wrote: Found this in service manual. Funny, your picture on your GT40 intake looks like a combination of the 5.0 and 5.8 in the service manual graphic!

You should probably keep in mind that the service manual is more accurate for the OMC/Volvo versions of the engine that came a year or so before PCM started getting the engine from Ford..

That page right there is a good example of some inaccuracies

PCM never had a 302 version of the engine and they never had the fuel reservoir/vapor separator that's mentioned there and covered elsewhere in the manual. There are a handful of other things too.

It's kinda like they took the manual Ford made for the original engines for OMC/Volvo and did a lousy proofreading job and slapped their name on it

One came with the new EV 68 valve I ordered from rock auto. The whole kit only cost $9.