M8 Packages
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• Performance Valve Job    

• New Bronze Guides

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“Valve Job” is such a critical foundation for the overall foundation of the cylinder head. The M8 is unique as the intake flows superior to all the 2 valve heads in stock form, it’s the exhaust side that needs special attention. Profile proven valve seat angles are used to gain additional flow on the intake side with a radius profile on the exhaust side. All 8 guides will be replaced with new bronze guides sized to tighten up the loose stem to guide clearance that comes from the factory. Every head is then surfaced for flatness (up to .010” per the customer’s request) to ensure our MLS head gasket will seal as it should.  Heads are thoroughly cleaned, inspected and assembled with new Viton valve stem seals.