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The COMP Cams Hi‑Tech polylock is a 1/2" adjusting nut made for Ultra Pro Magnum and Ultra Pro Magnum XD rockers. This single polylock secures rocker stud adjustments in high-end race applications where reliable rocker retention is needed. It matches the specified stud size and is intended for direct use with the named Ultra Pro Magnum rocker families to maintain valve train settings under demanding conditions.
COMP Cams Poly Lock 1/2in Hi-Tech Single
