2003 Silverado 4.3 to 4.8 or 5.3 engine swap

[GasGuzzler]

Never heard of a DBW 4.3 V-6 but weird things happen in truck land.

[hartinclay]

Its drive by cable, I can get a throttle body off of ebay thats dbc for 80 bucks, I am wondering if this will screw up anything on the wiring harness since 03 and up v8s are dbw. I plan on just bolting on the dbc throttle body and hope that it all works