DeTomaso Mailing List: August 2000, Message #138

From:	KenInSoCal@aol.com
Subject:	Use of stock valve etc.
Date:	Fri, 4 Aug 2000 13:33:36 -0400


I've talked to a number of people who have run the stock, two piece, multi 
groove valves with no problem. Others have had severe problems. So either the 
quality varies and some break while others don't, or we are missing something.

Could those who have run these valves successfully or unsuccessfully provide 
me with the following:

    Max RPM         Cam         Valve Springs           valves broke/worked
                    (lift)          (double or single,        (head broke or
                                weight if you have it)         retainer broke)

When I get a statistically meaningful response, I'll put it into table and 
share it. Has anyone had a problem with valves breaking in a stock engine?

Ken