I swapped out my totally lame 350 with TBI to an unbelievable 6.0 LSx engine and would do it again a thousand times over.
I am still not 100% complete but it is now a daily driver. I went to Nelson Dyno Day and put down the following number with a stock 6.0 engine from a 2005 Silverado 2500 and a Nelson custom tune.
260 RWHP
270 RWTQ
The difference in normal driving is awesome. Every OBS Z-71 should get this swap. I used my 1994
4l60E that had been built by Alamo Performance and can scratch second gear without trying. I have often downshifted from about 30 mph and lit up the tires. I have really new Michelin LTX AT 265/75- 16 tires and my SuperSport Z-71 package has posi-traction so I am spinning a lot of tread. I want to find out my top speed real bad but haven't had the chance to drive to Ft Stockton yet... maybe soon.
Z-Rod out-