When your rebuilding your GM LS engine, make sure not to overlook the smaller parts of your LS engine such as all the plugs needed to finish off your engine. Mr. Gaskets Block hardware kit for LS engines has all the OEM style plugs needed for 1997 through 2015 GM LS Engines. They replace the following GM part numbers. Our quality plugs are made from brass and zinc plated steel and feature sealant on the threads for a leak free seal. The kit includes the plastic oil passage restrictor, and all the plugs needed to seal the water and oil passages in your LS engine. Don’t forget Mr. Gasket has engine overhaul kits that include every gasket for a complete engine rebuild when wrapping up your LS engine.

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