V12 PCV system rebuilding

[AM-DB9]

Would anyone know where to source the plastic one-way check valves that are used in the PCV octopus?
It looks like it uses a rubber duckbill for the actual check valve inside of the plastic part.

I have seen nice aluminum ones on Amazon, but they are spring loaded and take about 7-10x the pressure to open.

[Hedged]

See 8:05 for specific info and one solution....the entire video is interesting.

https://www.youtube.com/watch?v=Xgq4OJdCYJU

"Looking Inside my $280,000 Aston Martin V12 Engine to see Why it Keeps Failing"

[AM-DB9]

Hedged said:

See 8:05 for specific info and one solution....the entire video is interesting.
https://www.youtube.com/watch?v=Xgq4OJdCYJU
"Looking Inside my $280,000 Aston Martin V12 Engine to see Why it Keeps Failing"

Thanks, I did see that video and that's what got me to thinking of sourcing out more parts for the "some day" in the future when I may need them.
The one-way valve he used in the video is the one i'm referring to as needing 7X to 10X the pressure required to open. Personally I don't see that as a good match and could very well end up having bad unintentional consequences.

[Hedged]

DIY is definitely an educational journey. Perhaps in his apparent thoroughness with the DBS he will come to realize that potential issue. And, speaking of the "journey", I revisited an older video of Mike at Bamford Rose explaining the shortcomings of the Aston VH OBDII vs. that of its BMW contemporary. Enlightening and a bit disappointing, but another useful push down the path. Best of luck in your parts search.