The Ford Barn

3W Hank · 03-05-2024, 06:12 PM

I has a question over the Potvin 425 eliminator cams.
I came over to see a cast 8AB marked POTVIN, and under was stamped 425.
I read some on it and if I got it correct he did both 32 steel core and cast and also welded cast ones.
But good sources tell me Potvin always used the 32 cores and grinded journals 010.
The one i saw had std journal diameter and cam was rather thin at core and lathed. Nice works.
Maybe several made copy of this cam and called it ’Potvin 425’.
-Maybe it was the same era or in the 50’s, 60’s or 70’s ?
Pretty shore this cam is not recently grinded.
But good ol information to know as FH race history.
Maybe some has more information.
Thanks.

03-05-2024, 06:12 PM	#1
3W Hank Senior Member Join Date: Feb 2022 Posts: 577	Potvin cams I has a question over the Potvin 425 eliminator cams. I came over to see a cast 8AB marked POTVIN, and under was stamped 425. I read some on it and if I got it correct he did both 32 steel core and cast and also welded cast ones. But good sources tell me Potvin always used the 32 cores and grinded journals 010. The one i saw had std journal diameter and cam was rather thin at core and lathed. Nice works. Maybe several made copy of this cam and called it ’Potvin 425’. -Maybe it was the same era or in the 50’s, 60’s or 70’s ? Pretty shore this cam is not recently grinded. But good ol information to know as FH race history. Maybe some has more information. Thanks.