What is the difference between the bearings for the cross drilled cam and the grooved cam?
Reason i ask is that i have pulled down my spare 292 which has done very few miles since rebuild, however it has a broken rocker shaft (!), due (i think) to it being assembled with no cam spacer. It is a C2AE block with ECZ-C heads and it has had a bit of of money spent on it - new 351w valves, re-bushed rocker shafts, new CROSS DRILLED camshaft. Cam bearings have also been replaced, but i do not know if with the correct ones. Thanks, Al.


South Australia

As far as I know there was no difference in the factory cam bearing between the use of a cross drilled and a non - cross drilled camshaft regarding the bearings.

For the best situation about cam bearings contact Vern Schuman and purchase a set of his cam bearings that are grooved .005 on the outside diameter of the bearing for oil circulation, while you have your engine down.

Oldmics

Dont know if its worthwhile even adding this? In the early days most of the cam brgs were made from a strap that had dovetailed ends that joined then were rolled to circle as the backing, once they lost a bit of tension they could move and ultimately block off the holes feeding the heads. In the latter yrs they are made from solid backing and frankly i just dont see turned cam brgs. Like lots of things old facts, clouded by time become urban myths and are used frequently in forums. I have allways just deepened the cam groove and also added this groove to cross drilled cams. All of this is in my experience and opinion and never had a problem in 30 yrs.



yyy

  AussieBill            YYYY    Forever Y Block     YYYY

 Down Under, Australia

Cam bearings
just finished installing myset,the cros drilled 1s only have1 bearing that has 3 holes. i used the set for groved cam they had 4 bushings al with5holes. and front 1 with 1 hole looks to me theyhad abunch ofnon groovebush and driled extrs holes.when i instaled the 1 i used for rocker oil i used a long drill bit to ensure good flow. next time i will buy the non groved set and save 12.00. i used dura bond.never had oiling isues with the numerous yblocks i have owned as well as a few i built for others,but always used 10-30 oil of good quality.

Yes Bill, was worthwhile - i was always told that the cam bearings turned, blocking the oil supply, NOW i know why...

.


South Australia

I can vouch for Schumman's cam bearings. I had a set installed in a 312 I am building and they fit wonderfully. That OD groove that Oldmics is talking about really sold me on the set. "Spin or no spin" you're gonna get oil flow. His price is not bad either.

Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

I agree with Daniel. I also had a set of Vern's cam bearings installed in my blown stroker motor without any issues and have good oil pressure with no worries about spinning the bearing and loosing it.

Rono

  Ron Lane,  Meridian, ID

How do i get on to him to purchase a set?

Thanks.


South Australia

You can call Vern at 563-381-2416 in Blue Grass IA. I bought his bearings bearings on EBay through CarShopInc., but I don't see them listed right now.

Mark

1956 Mercury M100
1955 Ford Fairlane Club Sedan
Delta, British Columbia

I email'd Vern, it appears he is CarShopInc. $69 a set plus post.


South Australia