Ray: If by chance you are planning on using a performance cam, John Mummert Y-block in Calif, advertises that his company regrooves all cam cores to ensure adequate oiling. You can link to his site from this sites opening page..


Paul

The cam bearings for cross drilled camshafts are compatible with the grooved camshafts.  A quick search does not find any new cross drilled camshafts but taking a new 'grooved' camshaft and having the groove cut deeper will alleviate any concerns about the oil flow being pinched off at a later date due to cam bearing 'softness'.

Lorena, Texas (South of Waco)

I am looking for a cross drilled camshaft for a 292 p/u. My truck is a 63 which I guess they started using the cross drilled cams again. I already have the cross drilled cam bearings in the block. Mine cam has some pretty major pitting on the edges of the lobes.  I don't know if the cross drilled camshaft lobes are the same on the 55,56 maybe you guys can give me some info on that. you can email me at Raymondac23@yahoo.com if you have one.