Next week my Blazer is going in to have the LS3/4L70 installed so I am selling my engine and transmission complete with accessories. I do not know any history on these parts but I do know they ran and drove and did not appear to be blowing any smoke. I want $1000 for everything picked up in Taunton MA. I can have my installer place the engine on the crate the LS3 came on and put the transmission in the plastic crate the 4L70 was shipped in. You would need to arrange shipping.
Here are some videos I took about a week ago.
http://youtu.be/JefSppuma0A
http://youtu.be/ROjmyKlUdAY
http://youtu.be/18Ezg5-5ghI