I HAVE A BUILT HEAD: TITANIUM RETAINERS AND SPRINGS, BIGGER VALVES THAT ARE SOME KINDA CROMAGNA-SOMTHING METAL (TEMPERED) HEAD HAS BEEN DECK, PORTED, AND KNIFED......EXTREMELY BAD ASS, MY CRANK BOLT STRIPPED OUT AND DIDNT FEEL LIKE REBUILDING....OH YA CAM IS STAGE 3 VTECH.....CUSTOM LOBED...YOU TELL ME A PRICE ........HAVE PISTON BEARINGS BLOCK WHOLE 9YRD