i was woundering how much $$$$$ i would get for a ls engine model 2000 with only 31,000 miles on it. i am looking at swaping for a Gsr engine. would i be crazy to ask for a GSR engine with 60,000 for my ls with 31,000 miles... dose anyone know where i could swap my enigne at or where i could sell my enigne then turn around and buy ba gsr engine.