i'm new to this forum but have found a lot of info in the last couple days. so here goes my question....my goal is to -if possible- swap a 500ho top end onto my 2001 xpedition cases. can anybody tell me where to get info on these motors for comparison or if a certain company could be recommended for a big bore kit ??? i'll try my local dealer one of these days but they are usually only trying to sell me something new instead of answering my performance questions.