Description
Increase Strength Over Stock, While Increasing Lift without Swapping Cams. For LS3/L99/L76 and Other Rectangle-Port Head Equipped LS Applications. Includes Full Set of (16) Stud-Mount Rockers (with Poly Locks), 3/8″ Studs and Raised Guide Plates for 5/16″ Pushrods. The above image does not show a complete set of Rockers, poly-locks, Studs, or guide plates.
Convert your LS3 engine to an adjustable valvetrain with the Ultra Pro Magnum Rocker Kit. Our kit includes 1.8 Ultra Pro Magnum Rockers, guideplates, 3/8″ studs, adjusting nuts and set screws for a complete adjustable valvetrain solution.

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