Swapped Gen IV for a Gen III LS in a 2007 Suburban Gen 3 To Gen 4 Conversion Harness
(Ls swap) put a gen 3 engine in a gen 4 truck. Have a gen 3 lq4. Going into an original ls2 (gen 4) harness car. Obviously i have a 24x crank and 1x cam motor 58x crank and 4x cam harness and ...