I believe book time is 8 hrs to do head gasgets.
8 hrs X shop rate which can be anywhere from $45 to $60 an hr
Parts.. a head gasget kit is generaly $50 or so to anyone walking into the local parts house.
At a shop the mark up will be at least 100% on parts.
Most will not let ya bring in yer own parts, if they do they generaly won't warranty anything other than a repair issue.
I consider a head gasget job as a no brainer, but if ya are not familiar with a rig I would not start with that as an introduction if ya are going to try to do it on yer own.
If ya have to take it to a shop and ya know it is at least a head gasget find out what the labor rate is and how many hrs they are charging to do it,
There is a Standard Repair Time for all jobs, I don't have an SRT manual in front of me but I seem to remember 8 hrs for head gasgets.
Get an estimate before they even start to tear into it and set a $$ amount.
My advise would be to get an estimate as to the cost and if if goes over that amount that you have to verify and ok any other repairs.
Make certain ya sign that lil estimate box before any repairs are made and that all other repairs are are signed for after that.
Good customers I will take a phone call ok to do a repair, we have alot of cutomers that we will not do any repairs on unless it is with a signature.
Good for us as they cannot say in court that we did repairs that they had not authorized.
Pay up sucker.
Worst case scenario and the head is cracked... most shops will let ya source another head and ya can bring one in cheaper than what they can get.
The down side... if the head ya replace it with is cracked it is not the shops fault and they will not stand behind it. ya get to pay labor again and parts to take it back apart.
Ya get a tail light warranty with it.
Let them sorce it out and it is on them if it fails under warranty.
Call around and get some quotes.
Post em up and someone here will tell ya if the shop is trying to screw ya.
Good luck and welcome to CK5