[dsraven]

if taking the head apart for cleaning its a great time to replace the valve seals, check the valve springs and their retainers and the keeper grooves in the valve stems, valve stems for wear limits, stem to guide clearances, check the gaskets surfaces for warpage, etc. clean the head up well, check for any cracks, lube the valve stems with some assembly lube or molyslip grease (my personal choice for valves) and slip it all back together. then clean and check the rockers and the rest of the valve train, lube and assemble as much as you can, in modules, so when assembly time comes those parts are easy to unbag and you know they are good to go.