Camshafts and oil additives

[Dtsnlvrs]

So I was doing a lash adjustment the other day when I discovered I had "wiped" 2 cam lobes. Now I checked the cam and sure enough it was a CWC billet. I think we had hashed that over enough already so I will not go there. So I called Isky racing cams and talked to Ron Iskenderian. He confirmed what I had suspected, and recommeded I send him a old stock "Japan" cam and a list of my exact engine specs and what I want the car to do. He is going to do a custom grind for my engine. Then we talked about oil. This is where we all need to pay attention. Our US motor oils no longer contain zinc di-phosphate. This is a critical component for our engines. Seems the EPA figured the only cars left that needed it were old rust buckets so what the hell. The idea is that ZDP bonds to the metal and when the oil sheers, the ZDP takes the hit instead of the metal. For a solution he recomends General Motors E.O.S. Assembly Lube (GM part #1052367). It can be obtained thru any chevy dealer. He says to use 1.5 can for break in and .5 can every oil change. I called a family friend at GM who works in the Corvette division and he verified Ron's claim. GM still sells EOS for its antique Corvette owners who are in the same boat we are. Hope this helps out there.

[beandip]

Thanks for the infomation , gives me something to research. Gary