Originally Posted by gvasquez_81
Another question guys. im not sure if the 462 heads have hardened valves? is it absolutely necessary to run hardened valves? or can i get away with adding a lead additive every once in a while? while it do anything to my engine? thanks
You can drive then til the seats are beat to death and that takes a long time with or without the lead additive. But harden valve seats are not hard to have installed.
Fyi is there an X on the under side of one port. If so you can probably get more for these on ebay than a new set of trick flow or world heads.