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The Champion irons start as reconditioned factory 8445 castings, get the heat riser passage filled, then are fully CNC ported. The chambers, intake ports, and exhaust ports receive extensive CNC work, and the intake and exhaust ports are then hand-finished for max flow. The deck surface is milled for a good head gasket seal. You'll also find that the intake face, the exhaust flange, and the valve cover rail are all machined flat like a brand new head. Other notable features of the Champion heads include machined cro-moly steel retainers, bronze guide liners, Teflon valve stem seals, and heat-treated machined valve locks. View Related Article
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