Got the 6.0 in today she is running well in need of a tune update though. I want to thank all that have helped on the advice and insight. Had a couple that told me for sure there was no way it was gonna work ,but as of about 3 hrs driving I don't see any problems yet. Got the trailblazer stall in and it stalls to 24 or 25ish ,but if I were to do it over again I would go bigger.
thanks to litreddevil for the help.

 

Awesome job. Why did some people tell you no way it was going to work? Did it go into something other than the 00' in your sig or did they not think the 5.3 ECU would accept the 6.0 swap?

 

The 00' model motor that I put in has a longer crankshaft that is made to accept the 80e. The pcm is alright just need to get allen to update my tune for the bigger motor.

 

Is your cam in? If its a 112 and running on the stock tune, congrats!!!

 

No I sold the cam to a fellow member on this board decided against it because of the towing I do from time to time. I just put the 6.0 and trailblazer stall in.

 

Ah, I got ya. I was gonna say.

 

Thats great to hear man, glad everything worked out for you. 6.0 is such and world of difference and soooo much fun to drive.

 

Great mod. You are going to love it. Now get it tuned and really wake it up.

 

NO PROBLEM ANY TIME GLAD IT ALL WORKED OUT

 

Good job! Now let me know when that tune is taken care of and we can do a little comparo