The new COMP Cams® Ultra Pro Magnum™ Chrysler Shaft Mount Rocker Arms feature all of the same high performance qualities as our stud mount Ultra Pro Magnum™ Rocker Arms plus all of the benefits of a shaft rocker system.
• Engineered SAE 8620 chromemoly steel body is heat-treated for maximum strength
• Contain proprietary bushing inserts
• Unique oil system lubricates all critical parts for long lasting service
• Designed to handle roller lobes and higher spring rates
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