Heres the deal, to replace a head gasket it is obviously different by car and make and model, but a good formula to go by is about three to four times the cost of the parts. The average cost of parts to do this job is around 3 to 4 hundred dollars so expect to pay around $1200 to $1600 on the job.t will cost about 1000 dollars to about 1500 dollars to repair a  blown head gasket depending on the type of vehicle you own. This  can also vary by location and damage don … e to the vehicle. Answered.