My First Stocker Cam

Dave Noll · 10-12-2012, 02:46 PM

Just received a cam, for my N/SA 351C 72 Cougar, that I had custom ground to their recommendation. The cam card is identical to the specs that they e-mailed me. I said I didn't want a dwell cam, but it sure looks like it is. They said to just use their race hydraulic lifters & a 926 spring. I dont have any experience with a lobe like this. Is this the current trend ? Break it in the same as a production aftermarket cam ?

Mike Taylor 3601 · 10-13-2012, 12:40 AM

Break in like any other flat tappet,make sure you don't have too much spring pressure for break in,less than 300 lbs open.
use a oil with high zinc,like Gibbs or Lucas break in oil also
If you can get lifters w/ .015 plunger travel will work better Precision products performance center in NC has tool steel version for around 450.00 set.
How much spring you need depends on how agressive of lobe you have, how much rpm
going to turn.
926 spring I'm guessing you have Comp stuff since that sounds like comp part# ,if is comp do you know who you talked to? if is'nt comp who's is it?
Mike Taylor 3601

Dave Noll · 10-13-2012, 03:37 AM

Yes it's from comp.The guy that I dealt with said he was consulting with one of the two stocker knowledgeable guy's that they have there. I was planning on turning about 6000 in the lights. Looking at the side of the lobe (from where the timing chain gear installs) the top of the lobe almost looks square, like an agressive roller cam. I thought that was called a "Dwell" cam. And for a dwell cam I thought you needed something like a schubeck lifter. The card says it has 299' @ .006 & 250' @ .050. ( .407 valve lift). By the way, mine is a 2 bbl combo.

Alan Roehrich · 10-13-2012, 07:29 AM

The two guys to talk to at Comp are Tim Cole, and Chris Padgitt. Tim Cole runs the racing department, he is a Super Stock racer, and an engine builder, Those two guys do all of my cams except the circle track cams, and Dave McCarver, who works for Tim, does those.

Your new cam should have been nitrided , and on a P-55 cor or better. If it was not nitrided, you need to call Tim and see if you can send it back and have it nitrided.

I use the Trend tool steel lifters, Trend is the company that makes the pushrods for Comp.

For break in, you need the low spring pressure, as previously mentioned, you need to use a moly based assembly lube, and you need a high ZDDP content oil that is 20W 50 viscosity or higher.

Tom keedle · 10-13-2012, 08:01 AM

fwiw, i'm planning on using the old oem springs for break-in...anybody see any issues with that?

Billy Nees · 10-13-2012, 12:36 PM

If you're the only one trying a 351c/2V combo, I'll pretty well guarantee you that you will be putting a few cams through it. Too big isn't a good thing. If you've got a (carb limited) 6000 RPM motor then there's no sense in installing a 7500 RPM cam. Keep it small and try and make cylinder pressure.

10-12-2012, 02:46 PM	#1
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 707 Likes: 2,612 Liked 236 Times in 109 Posts	My First Stocker Cam Just received a cam, for my N/SA 351C 72 Cougar, that I had custom ground to their recommendation. The cam card is identical to the specs that they e-mailed me. I said I didn't want a dwell cam, but it sure looks like it is. They said to just use their race hydraulic lifters & a 926 spring. I dont have any experience with a lobe like this. Is this the current trend ? Break it in the same as a production aftermarket cam ? __________________ Dave Noll, EF/S ,?/SA 6526

10-13-2012, 12:40 AM	#2
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,352 Likes: 315 Liked 250 Times in 88 Posts	Re: My First Stocker Cam Break in like any other flat tappet,make sure you don't have too much spring pressure for break in,less than 300 lbs open. use a oil with high zinc,like Gibbs or Lucas break in oil also If you can get lifters w/ .015 plunger travel will work better Precision products performance center in NC has tool steel version for around 450.00 set. How much spring you need depends on how agressive of lobe you have, how much rpm going to turn. 926 spring I'm guessing you have Comp stuff since that sounds like comp part# ,if is comp do you know who you talked to? if is'nt comp who's is it? Mike Taylor 3601

10-13-2012, 03:37 AM	#3
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 707 Likes: 2,612 Liked 236 Times in 109 Posts	Re: My First Stocker Cam Yes it's from comp.The guy that I dealt with said he was consulting with one of the two stocker knowledgeable guy's that they have there. I was planning on turning about 6000 in the lights. Looking at the side of the lobe (from where the timing chain gear installs) the top of the lobe almost looks square, like an agressive roller cam. I thought that was called a "Dwell" cam. And for a dwell cam I thought you needed something like a schubeck lifter. The card says it has 299' @ .006 & 250' @ .050. ( .407 valve lift). By the way, mine is a 2 bbl combo. __________________ Dave Noll, EF/S ,?/SA 6526

10-13-2012, 07:29 AM	#4
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,068 Likes: 1,502 Liked 1,642 Times in 379 Posts	Re: My First Stocker Cam The two guys to talk to at Comp are Tim Cole, and Chris Padgitt. Tim Cole runs the racing department, he is a Super Stock racer, and an engine builder, Those two guys do all of my cams except the circle track cams, and Dave McCarver, who works for Tim, does those. Your new cam should have been nitrided , and on a P-55 cor or better. If it was not nitrided, you need to call Tim and see if you can send it back and have it nitrided. I use the Trend tool steel lifters, Trend is the company that makes the pushrods for Comp. For break in, you need the low spring pressure, as previously mentioned, you need to use a moly based assembly lube, and you need a high ZDDP content oil that is 20W 50 viscosity or higher. __________________ Alan Roehrich 212A G/S

10-13-2012, 08:01 AM	#5
Tom keedle Senior Member Join Date: Dec 2008 Location: Berthoud, Coloraduh Posts: 695 Likes: 13 Liked 8 Times in 7 Posts	Re: My First Stocker Cam fwiw, i'm planning on using the old oem springs for break-in...anybody see any issues with that? __________________ without losers,winning means nothing.

10-13-2012, 12:36 PM	#6
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,473 Likes: 3,564 Liked 7,596 Times in 1,718 Posts	Re: My First Stocker Cam If you're the only one trying a 351c/2V combo, I'll pretty well guarantee you that you will be putting a few cams through it. Too big isn't a good thing. If you've got a (carb limited) 6000 RPM motor then there's no sense in installing a 7500 RPM cam. Keep it small and try and make cylinder pressure. __________________ Billy Nees 1188 STK, SS I'm OK..........it's everybody else.