Why would that be, UT just regurgitates what he hears. As mentioned above other folks have said reversing off set pistons will show a slight power increase for years, this is not new information. Anyone the understands what the ‘ thrust side’ of a cylinder is will understand why. For the guy searching for a junkyard engine to run a test. A well worn bore and piston will not show much change, why? Because the piston and bore are worn and there will be excess piston clearance regardless of how the piston is installed. A meaningful test would require pistons-rings-bores well within new factory specifications.
