I need info on b20/vtec. I read that it isnt a good swap durability wise because of the r/s. The rod when pushing the piston on upstroke wears in at the cylinder walls there fore killing durability because the r/s is sorta at an off angle. Thats stock and vtec, that is why the ls and b20 vtec's arent so good. But i heard sleeving can stop that. I also heard that sleeving causes overheating is all of this true to any ones knowledge. If so please explain.