head installition

It takes me about 3-4 hours to rip the engine down to the shortblock. Then it takes about 6-8 hours to put it back together b/c I scrape on the block and heads for what seems like forever. It is very simple after you have done it once or twice. Paying $600 is just crazy. I would feel bad charging someone that much to swap their heads. Doing it yourself just depends on how mechanically inclined you are.