have a look around and see if any others are for sale and what condition, what is the overall condition of this one.... and i would say that it has blown it's head gasket... i would say ball park figure for all parts and machining etc $1000 for new gasket, arp's torqued to 72ft lbs and you should be good to go.... depends how much your machine shop wants to charge for checking the head etc also i would put new bearings in the bottom end also... you never know if he ran it out of oil