(2012 civic si) I put a lot of miles on my car, i know if i take care of the engine i can put 300000+ miles on it but, But i want to play it safe and know i can rebuild this engine if anything were to happen.. With that said i googled and i could not find a rebuild it for my car. should i just save enough money and get another k24 or is there a kit out there for my car? I hear the trannys suck should i prepare for that to? or can i drop a k20 in the shell with a k20 ecu?