These 1.7:1 ratio hardened steel rocker arms have elongated slots to provide extra clearance for high-lift (.600" and greater) camshafts
Use with all 396-502 Big-Block heads with adjustable rockers
Each assembly includes rocker arm as well as the ball and nut
NOTE: Can be used on any Gen V or Gen VI by using rocker stud Part Number 12368941. Will not work with ZZ502 valve covers.
