Hey, welcome to the site!
Labor on machine work is pretty variable, so the best way to get an estimate for your area, is to call several shops and ask. You need to decide in advance whether you want fancy, three angle seat cuts, Perfect Circle or plain rubber seals, new valves and/or new springs (new springs is a good idea whether you get new valves or not), lightweight retainers, etc. etc.
You also have to decide whether you are going to pull the heads and take them the machine shop, or let somebody else do it all for you...
Labor on machine work is pretty variable, so the best way to get an estimate for your area, is to call several shops and ask. You need to decide in advance whether you want fancy, three angle seat cuts, Perfect Circle or plain rubber seals, new valves and/or new springs (new springs is a good idea whether you get new valves or not), lightweight retainers, etc. etc.
You also have to decide whether you are going to pull the heads and take them the machine shop, or let somebody else do it all for you...
