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A COMP Cams Magnum roller-tip rocker arm built for street performance, this 8620 chromemoly steel rocker features a roller tip to reduce friction, a 7/16" stud and a 1.72:1 ratio. It is specified for Ford 351C and 429–460 applications and Chevrolet 396–454 Big Block use, handles up to 350 lbs of spring pressure, and is promoted as improving valve lift effectiveness for serious street installations.
COMP Cams Magnum Roller Rocker CB / FC
