Firestorm engine upgrade?
 

Hey guys im looking to upgrade my firestorm with a more reliable engine and was wondering does anyone know if there is a direct replacement out there that dosent need a ton of modifications or should i just put another G3.0 back on my truck? I'm looking for the same power or more and i dont want to start hacking on my chassis, so any help/input would be nice and greatly appreciated.

Nobody has any suggestions

Any "Small Block" .12-.20 engine should work just fine.