Pro, Yale has replaced the 2.4 cylinder heads with new and improved, part number 582002516. The original heads did have problems with the valves and seats. Not sure how good the new head is as this is the second update for the 2.4. The new cylinder head features hardened seats with higher contents of chrome, molybdenum, cobalt, and nickel, and nitrided valves. Hope this helps.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.