First off without going into details there is a million things to consider when pushing the 400hp + limits with an engine. How do I know cause there is a giant hole in my bank account from learning the hard way. We purchased an engine from Enjuku racing from their drift team. They used to carry 4 engines. 2 in the cars and 2 as back-ups. We purchased one of the back-up motors. The bottom end is not stock not even close to prove it here is a pic of the piston we destroyed.
