COMP Cams · New
COMP Cams Rocker Arm KitLS3 1.8 5/16
MPN 16765-KIT · Store SKU cca16765-KIT
Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.
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Product details
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. Ultra Pro Magnum 1.8 Ratio Adjustable Rocker Arm Kit for GM LS3
Manufacturer fitment & guides
Check 16765-KIT against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y