btw about the oiling problems that the ls motors have (mentioned by Mikelly earlier in this thread), that seems to be a very easy fix. A catch can can be placed and the switching out of the pcv valve to the revised pcv valve (GM part #12572717)will fix this problem.
oh yea and theres companies that already sell the catch can for the ls motors.
http://www.eliteengineeringusa.com/Catch_Can.html