COMP Cams Rocker Arm KitLS3 1.8 5/16

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.