I've decided to just go with the 4200 vortec. After hearing so many positive comments about it, I think it will be worth the extra work. The 2008 engine I am getting has everything except the wiring harness. The only wiring harness I can seem to find is one on e-bay for an 06. I have called many, many, many local salvage yards and can't find any wrecked envoy/trailblazers.
Will the 06 harness work for the 08 engine?
