Low zinc causing cam failures?

[Mazatrol]

Maybe this has been discussed here before, but I was just reading on another forum about higher than normal cam failures (Comp and Crane) due to reduced zinc levels in motor oils over the last several years. This is mainly concerning older 60s and 70s Chevy engines. Thought you guys would be a good source for opinions on this.
Is it OK to post the link to that discussion or is that a no no??

[ January 19, 2006, 11:41 PM: Message edited by: Mazatrol ]

 

[Mazatrol]

Here's the article......
http://img.photobucket.com/albums/v494/bobs77vet/misc/carcraft.jpg

Mods.....if this would be more appropriate in the engine oil section please feel free to move it.

Thank you

Edit....found this similar thread in the engine oil section.
http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=1;t=013101

[ January 20, 2006, 12:44 AM: Message edited by: Mazatrol ]

 

[GoldenRod]

The reduction in zinc is to prevent premature catalytic failure. They usually make up for it by using more molybdenum. If you want more zinc in your oil, and don't have a catalytic, go with one of the diesel oils.