Product Description
Genuine GM 12577927 "LS6" Valley Cover
Fits Gen 3 LS Car & Truck Engines 4.8 5.3 5.7 6.0
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Has a barbed PCV port connection and internal baffling. Great upgrade to the PCV systems on LS1 and 2006-earlier truck engines to reduce oil consumption. Some 2001-earlier blocks will require notching for clearance. Direct bolt-on for 2002-later blocks.
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Includes gasket, bolts, and knock sensor grommets.
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For use on Gen 3 LS engines only. These engines have the camshaft sensor located on the rear of the engine behind the intake manifold, and the knock sensors located under the intake manifold. If your cam sensor is in the front of the block in the timing cover, and your knock sensors are located on the sides of the block, you have a Gen 4 engine.