hey everybody i just bought a 97 silverado 1500 ext. cab and figured id join the forum and see what everyones doing with these trucks i live in sw florida. bought it pretty cheap as it has blown head gaskets. was wondering if swapping out the 305 to a 350 is just as easy as it sounds or am i going to need to replace the wiring harness and ecu with it. i figured they should be the same parts intake/sensor wise but i could be wrong or is it just easy enought to swap a newer 5.3l vortec. ive searched this forum some and cant find any answer if someone could send me links. my name is alex and im glad to become a member of this forum.