I think one thing that would be nice is everyone selling these types of kits on this website and the other one included standard size head bolts to make it more convient. cause everytime you tear it down your supposed to replace the head bolts,so you have to contact yamaha and wait on them. this way you would get a complete ready to assemble kit even if they charged extra for the bolts
and the big bore kits included the cylinder drilled and tapped for bigger head studs/bolts for more money since its recommended to have bigger ones for the big bore. But only if your exchanging your cylinder for a bored one from the seller
jmo im done rambling on. very good prices and will make alot of people happy