Nissan Repair: burnt exhaust valve, broken studs, head gasket

Question
how much would a burnt exhaust valve job cost?

Answer
Cornell,

Depending on the problem and the number of valves to do and if it is a 4 cylinder with just one head or a V6 with two heads the cost can vary.  For a six cylinder about $500 bucks US is a baseline and up to $1500 depending on the number of valves to be replaced and if the heads require work like a resurfacing and repair of broken studs and such.  A head gasket set for a V6 is about $120 alone...  Plus labor...