I have a Super Clean LS1 Removed from a Pontiac GTO. The 2004s LS1's made use of LS6 design blocks which were geared up with much better oil pumps, cooling passages, and oil passages. The motor has 60k Miles and is clean as can be with no leakages whatsoever. The Cam kit which is installed on the motor consists of the Torquer V2 cam by Texas Speed and their upgraded double valve spring kit. Titanium retainers, Hardened Pushrods, and brand-new valve seals were also installed. It comes total with all the covers and everything imagined.