Well I don't know where all those other guys find them for the $600 I have been looking on CL here in Ga and a complete LS1 with trans & acc. they are usually asking about $2500 to $3000. I got lucky and after looking for 2 year I finally found one a 6.0L iron block and head with accessories and ecm with 140,000 miles, but it had a cut harness it was out of a 2500 HD truck for $1000 so I'm happy if I got to rebuild it then so be it but I got want I was looking to pickup
before I found mine on CL I was going to pick up one from the place in GA
http://www.ottingautoparts.com/
They specialize in drop outs and know how to do in about an hour I have read many reviews about this Salvage yard and all have been positive. When they do a pull nothing is cut you get everything in tack. anyway thought that I throw this in