I was wondering if anyone has ever done or heard of a engine swap put for the 5.3 to a 6.0. The Burb is paid for and I do not want to buy new or used but I need more power for towing and was wondering if I can do a direct swap out from the 5.3 to the 6.0. Any help would be great. Things that have to be changed? Trany, Exhaust Manafolds, Computer. I was hoping to get away with not changing the trany and the exhaust. Or would it just be easier to through some upgrades on the 5.3? Borla exhaust, Mass Ari flow, K&N, Bully Dog Chip, Super Maxx Headers and flow through cats. I pull a 28 foot inline all alum trailer loaded weight about 3500 LBS. Thanks.