CHEVROLET PERFORMANCE VALLEY COVER - GEN 3 LS - 12577927
LS6 Valley Cover. Valley Cover Gasket Included. Eliminates the two rear valve cover PCV hose connections as well as the PCV hose and PCV valve. Improves crankcase ventilation and decreases the quantity of oil and contaminants that make it into your intake. Direct bolt-on for 2001-02 LS1 engines. Earlier LS1 engines require some minor cutting of a boss in the engine valley that interferes with the cover baffle.