Well my 06 yz450 engine is getting old and the replacement wisco piston thats in it is starting to get blow by and its way past over due to get replaced . I want to start saving up for the $1000+ engine parts im going to need. I know ill need a new cylinder/piston kit , the crank dint feel bad 2 years or 60+ hours ago when overhauled the transmission gear stack . Iv been dreaming of a 500cc stroker kit for the 450 but iv heard it last about 30 hours befor piston is smoked and id like to think the 470cc big bore is the way to go but I dune this bike behind our long travel buggy group in glamis and do Barstow/lacuern valley rides and mabe a few single track rides and sometimes I overthink how much horsepower I really need in a desert dirt bike. what parts or kits does the dirt bike comuity recommend going with? *hot cams kit with stock (cylinder works)450 bore? *factory Yamaha 450 cylinder and piston replacement with mods? *470 big bore kits with mods ? *500cc stroker monster engine build let me know what a novice desert racer/rider should save up for.