View Single Post
Old 12-14-2020, 09:03 AM   #6
Tim Ayers
Senior Member
 
Join Date: May 2010
Location: NJ
Posts: 7,233
Default Re: 1932 V-8 original steel cam

Sponsored Links (Register now to hide all advertisements)
Quote:
Originally Posted by Bored&Stroked View Post
Why Ronnie wants it is because it is steel billet . . . the only one (and some early 33's) that came this way. He will be regrinding it to whatever Ardun profile he is going to use.

Potvin liked to use the steel 32 cores for his 425 Eliminator grinds - as his profile had a pretty "pointed tip" and he liked a steel core for the smaller base circles his 425 grind ended up with. Also, the thought was that the nose of the lobe wouldn't wear as much as with a cast core. In most original Potvin 425's the journals were ground to .010 under. In later years I also saw some cast core 425's with hardface overlay welds on the tips of the cast core lobes.
I've always been curious as to why the cam journals are turned .010 under on an Eliminator. What is the reason for this?
Tim Ayers is online now   Reply With Quote