btw StreetRacingCRX, to answer your question, i would stay away from any frankenstein combo engines, and i would go with a b18c1 from the gsr, its not an INCREDIBLY expensive swap[i know its still a little pricey, look to pay at least 4000 if your doing all the work yourself], but is about hte best money to power ratio. The b18c5 is the quickest, but it is not difficult to build a b18c1 to get it to the same power