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Old 01-18-2025, 01:47 PM   #1
Norway_
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Default Flathead 8ba pcs valve
Hello

Ford flathead 8ba
With 2 Stromberg carburetors
Does the pcv valve have to be connected to both carburetors or just one?
Thanks for reply
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Old 01-18-2025, 03:48 PM   #2
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Default Re: Flathead 8ba pcs valve
The PCV will work perfectly if its located anyplace below the carburetors throttle plates.
You only need to have one connection overall its best anyplace in the intake plenum to get the vacuum signal needed for the PCV to work.
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Old 01-18-2025, 04:01 PM   #3
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Ronnieroadster thanks for your reply!
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Old 01-18-2025, 06:06 PM   #4
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Default Re: Flathead 8ba pcs valve
If you are adding a PCV to a flathead make sure you are pulling from the correct port. I have seen some PCV installations on a flathead that resulted in pulling dusty outside air into the oil pan slot, achieving the opposite of the desired goal.
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Old 01-19-2025, 05:25 AM   #5
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Default Re: Flathead 8ba pcs valve
Will this work

Mount the vacuum base on one carburettor. Connect the pvc valve to this vacuum base?
Does it matter which of the carburetors I connect?
Will use Offenhauser 1075 intake
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Old 01-19-2025, 05:26 AM   #6
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38 coupe thanks for your reply
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Old 01-19-2025, 06:48 AM   #7
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Default Re: Flathead 8ba pcs valve
38 coupe which port will you recommen?
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Old 01-19-2025, 06:56 AM   #8
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Default Re: Flathead 8ba pcs valve
Found a guy who makes spacers for Stromberg97
thinking 1" or 4" and connect pcv valve to spacer.
Could this be a better choice?
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Old 01-19-2025, 03:54 PM   #9
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Default Re: Flathead 8ba pcs valve
Quote:
Originally Posted by Norway_ View Post
Found a guy who makes spacers for Stromberg97
thinking 1" or 4" and connect pcv valve to spacer.
Could this be a better choice?
That would work perfectly.
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I use the F word a lot no not that word these words Flathead, Focus and Finish
"Life Member of the Bonneville 200 MPH Club using a Ford Flathead block
First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921
First Ford flathead roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH reset the record in 2024 to 211.830 running to mile four. Top speed 2024 mile five 220.672 exit speed 221.587
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Old 01-19-2025, 05:20 PM   #10
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Default Re: Flathead 8ba pcs valve
I wish I could post pictures but sadly I'm a dinosaur. I have done quite a few Flathead s with a PCV and I think how we do it not only looks good but works great.
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Old 01-19-2025, 05:38 PM   #11
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Default Re: Flathead 8ba pcs valve
Quote:
Originally Posted by Krylon32 View Post
I wish I could post pictures but sadly I'm a dinosaur. I have done quite a few Flathead s with a PCV and I think how we do it not only looks good but works great.
If you can send 'em in an email, maybe you should send them to someone who can post them. They sure sound like something I'd like to see. Maybe one of the guys who have mastered the art of posting them large sized on this forum ("petehoovie" or "mercman from oz", etc.) will help. "V8Coopman" used to do it for other folks, but alas, he's been excused from the task. As a last resort, you can send them to me : "[email protected]".
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Old 01-19-2025, 06:06 PM   #12
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Default Re: Flathead 8ba pcs valve
Tubman I'll send you 2 different versions.
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Old 01-19-2025, 06:24 PM   #13
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Default Re: Flathead 8ba pcs valve
https://www.jalopyjournal.com/forum/...#post-15011896


See post number 5 for photos and info on what I did for my 8ba
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Old 01-19-2025, 06:27 PM   #14
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Default Re: Flathead 8ba pcs valve
Here are "Krylon32"'s photos :
Attached Images
File Type: jpg PVC!.jpg (75.9 KB, 50 views)
File Type: jpg PVC2.jpg (77.5 KB, 48 views)
File Type: jpg PVC3.jpg (68.3 KB, 53 views)
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Old 01-19-2025, 07:25 PM   #15
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Default Re: Flathead 8ba pcs valve
Thanks Tubman. I need to add the 3 FH intakes in the pictures plus several others were built for me by Bob at Baxter Ford Parts in Lawrence Kansas. The intakes are all Offenhauser.
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Old 01-19-2025, 11:04 PM   #16
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Default Re: Flathead 8ba pcs valve
Quote:
Originally Posted by Norway_ View Post
38 coupe which port will you recommen?
On an 8BA use the road draft tube hole, just like Krylon32 did:
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Old 01-19-2025, 11:22 PM   #17
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Default Re: Flathead 8ba pcs valve
Here's a pretty comprehensive thread about flathead PCV systems that was put together by our own "V8Coopman" a few years ago I suggest that anyone contemplating a PVC system review it before jumping in with both feet.

https://www.fordbarn.com/forum/showt...take+pcv+valve
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