Jeff my 63 ran fine with 130,000 miles,but i knew that i would rebuild someday because im keeping it.Anyway it dropped a valve and broke a piston,so it was rebuild time.I got the parts from russ (30 over pistons,rings,valves,springs,pushrods,lifters,oil pump,cam,all bearings,timing chain setup,gasket set,and a few things i problobly forgot for around $1900.Then had a reputal engine shop do all motor work done installing everything except timingchain cover,water pump,valley pan,etc.for $1550.Happy to have new motor and painted engine bay.Good Luck and keep us posted.Tim Nugent ROA 12969...