how to ID a Pro55 cam core

Uncrated · 04-25-2007, 05:03 PM

Racers,

what is the way to know for sure a cam is ground on the Pro55 core? Not that I doubt the cam company, that is not the issue. But if an unknown cam is laying on a table, how would you tell?

Thanks,

Larry & Jeff Woodfin
Team Woodfin Racing
G/SA
1969 Nova

"I am glad old, is not as old as it used to be" Larry Woodfin

Alan Roehrich · 04-25-2007, 07:16 PM

The P-55 cam I had actually had P-55 cast into it.

Alan Roehrich

Bring "AA" classes to NHRA Stock Eliminator!

Uncrated · 04-26-2007, 06:23 PM

Alan is correct,
after looking at a number of flat tappet cams, the one I knew for sure that is a Pro 55 core, did in fact have a 55 cast into the cam. None of the other cams I examined had the 55 number.

Jeff & Larry Woodfin
Team Woodfin Racing
F/SA
"Standing Novation" 1969 Nova

"I am glad old, is not as old as it used to be" Larry Woodfin

Alan Roehrich · 04-26-2007, 09:26 PM

The one I just had actually had "P 55" cast on the core of the cam itself. I do not know who ground it, it was not well marked, so I actually had to plot the thing in the engine.

The Comp "Pro Core" 4-7 swap cam did not say Pro Core or P 55, or anything else on it, but the core itself was a good bit larger in diameter.

Alan Roehrich

Bring "AA" classes to NHRA Stock Eliminator!

04-25-2007, 05:03 PM	#1
Uncrated Banned Join Date: May 2006 Posts: 170 Likes: 0 Liked 0 Times in 0 Posts	how to ID a Pro55 cam core Racers, what is the way to know for sure a cam is ground on the Pro55 core? Not that I doubt the cam company, that is not the issue. But if an unknown cam is laying on a table, how would you tell? Thanks, Larry & Jeff Woodfin Team Woodfin Racing G/SA 1969 Nova "I am glad old, is not as old as it used to be" Larry Woodfin

04-25-2007, 07:16 PM	#2
Alan Roehrich VIP Member Join Date: May 2006 Location: Murfreesboro TN Posts: 4,971 Likes: 1,166 Liked 1,227 Times in 317 Posts	The P-55 cam I had actually had P-55 cast into it. Alan Roehrich Bring "AA" classes to NHRA Stock Eliminator! __________________ Alan Roehrich 212A G/S

04-26-2007, 09:26 PM	#4
Alan Roehrich VIP Member Join Date: May 2006 Location: Murfreesboro TN Posts: 4,971 Likes: 1,166 Liked 1,227 Times in 317 Posts	The one I just had actually had "P 55" cast on the core of the cam itself. I do not know who ground it, it was not well marked, so I actually had to plot the thing in the engine. The Comp "Pro Core" 4-7 swap cam did not say Pro Core or P 55, or anything else on it, but the core itself was a good bit larger in diameter. Alan Roehrich Bring "AA" classes to NHRA Stock Eliminator! __________________ Alan Roehrich 212A G/S

04-26-2007, 06:23 PM	#3
Uncrated Banned Join Date: May 2006 Posts: 170 Likes: 0 Liked 0 Times in 0 Posts	Alan is correct, after looking at a number of flat tappet cams, the one I knew for sure that is a Pro 55 core, did in fact have a 55 cast into the cam. None of the other cams I examined had the 55 number. Jeff & Larry Woodfin Team Woodfin Racing F/SA "Standing Novation" 1969 Nova "I am glad old, is not as old as it used to be" Larry Woodfin