I took my Head to a Machine shop in town. They refurbished it for a 120.00. Like new. I think it was worth it. Ring expanders are cheap, Look like a pliers at Sears. I May have to pull my Valve Cover off, I never Locktited my Cam Gear. Probably a good Idea. I'm not sure about doing Valve work, though I think I may on a future engine. But its not as hard as you'd think. the hardest part was getting the Jugs over the pistons. A second set of hands helps a lot. I just used one of those cheap Torque wrench witht the scale that flexs.