I recently pulled the head on my 216, had it rebuilt then reinstalled it myself and in my case 8 hrs is about right.
The head rebuild ran around $325 and a new whole gasket set ran about $90.
I reused the valve train, water pump & thermostat but had to get new upper & lower rad hoses as well as new heater hoses, they ran about another $30-$40. 2 Gals 0f antifreeze ran another $30.
So in parts I'm probably into $450 - $500.
I've not priced a water pump but I'll estimate another $50-$70 for one. Thermostat maybe $10-$15.
If prices are similar in Texas, looks like he's built in some cushion to cover labor (which he says is a high estimate).
As Dave says above if it includes head rebuild thats in the ball park.
Good luck
Dave
