Hemi Valvetrain And Head Upgrades
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While the top end of the Superior/Manley valve is custom, the bottom end features the same excellent swirl polish treatment, beefy margins, localized stem diameter reduction, and one-piece stainless steel construction as regular Manley performance valves. A stock 5.7-sourced Chrysler valve is shown on the left for comparison. Superior can supply these special valves with stock 5.7 (2.00/1.550 inch) or 6.1 (2.08/1.600 inch) head diameters, as well as custom 2.100/1.650 sizes. View Related Article
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