Hey everyone, I've been doing some research on here on a problem with my car. It's a '99 GT 5spd and for the past several months it's been knocking/rattling pretty bad under load usually above 2000-2500 rpm. Now that it is finally a little bit dry outside I'm planning on crawling around it to try and pinpoint where it is coming from. If worse comes to worse and it ends up being a main bearing or something else catastrophic, would a 32v 4.6L out of a '98 Lincoln work as a swap? Also, would I need to to anything to the ECU or any other electrical management system? Thanks in advance.