I'm still pretty new to the conversion game so my opinion isn't very heavy but to me, LS1Truck is and always will be a conversion site. It's my go to forum for anything conversion. There are so many forums on the net but I could pretty much care less about them. When I have a conversion question, I'll always search/ ask here and nowhere else.

There are plenty of performance mod forums around but no other "real" conversion forums. At least none with as much knowledge base as here.