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The Moroso GM LS valve cover breather kit provides a purpose-built breather solution for GM LS valve covers. Offered as a matched kit, it supplies the venting components needed for LS-style covers and is intended for use where a dedicated Moroso breather assembly is preferred to give a clean, functional crankcase vent on LS engines.
Moroso GM LS Valve Cover Breather Kit - Moroso
