1 /5 Redd Five: A while back, I paid big bucks to have a Honda engine. Completely machined and rebuilt. Three years later and 500 miles only, I’m starting to have trouble with it. The heads are not properly torqued, and there are oil leaks on the camshaft, exhaust seal, and on the intake camshaft seal. The valve cover was not installed properly as well and now the spark plug holes are filled with oil. I would recommend not using this business.