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Ultra Pro Magnum™ Rocker Kit w/ Studs & Guide Plates; GM LS3/L99/L76/Rectangle-Port Heads

In stock
  • For LS3/L99/L76 & Other Rectangle-Port Head Equipped LS Applications

  • Includes Full Set of (16) Stud-Mount Rockers (w/ Poly Locks), 3/8" Studs & Raised Guide Plates for 5/16" Pushrods*

    • The above image does not show a complete set of rockers, poly-locks, studs, or guide plates

Increase Strength Over Stock, While Increasing Lift Without Swaping Cams

As LS engines continue to grow in popularity, COMP Cams® has expanded its line of rocker arms to build components specific to LS applications. New Ultra Pro Magnum™ Rockers are made from investment-cast 8650 chromemoly steel, utilize upgraded trunnions and needle bearings over stock and are stronger, stiffer and more durable than the stock parts. They also feature a 1.8 ratio (compared to the stock rockers’ 1.7) and utilize a roller tip instead of a slider. The higher ratio and increased stiffness make these rockers a great option for increasing lift without changing cams. This increased stiffness, along with the upgraded trunnion package and roller wheel, also makes them a perfect choice when running aftermarket valve springs. The rockers are also available in a bolt-on design that uses stock rocker stands. The stud-mount version is perfect for individuals running mechanical lifters as well. Kits do not include pushrods, but they are available separately.

  • Increased (1.8) Ratio & Stiffness Make Rockers a Great Option for Increasing Lift w/o Changing Cams

  • Investment-Cast 8650 Chromemoly Steel Body That is Stronger, Stiffer & More Durable Than Stock 

  • Increased Stiffness, Upgraded Trunnion & Roller Wheel Make Rockers Perfect for Aftermarket Valve Springs

  • Limited Lifetime Warranty: So Strong That We Guarantee the Rocker Bodies Against Breakage for Life

  • Stud-Mount Design Converts GM LS to Convenient, Adjustable Valve Train; Bolt-On Version Available

  • ALSO AVAILABLE FOR LS1/LS2/LS6/4.8/5.3/6.0/Cathedral-Port Head Equipped LS Applications

 All Available Ultra Pro Magnum™ GM LS Rockers
 LS3/L92/L76 - Rectangle Port Heads
 Ultra Pro Magnum™ GM LS Rockers (16) - Bolt-On
 Ultra Pro Magnum™ GM LS Rockers (16) - Stud Mount
 Ultra Pro Magnum™ GM LS Rockers (16) - Stud Mount Kit w/ Studs & Guide Plates
 LS1/LS2/LS6 - Cathedral Port Heads
 Ultra Pro Magnum™ GM LS Rockers (16) - Bolt-On
 Ultra Pro Magnum™ GM LS Rockers (16) - Stud Mount
 Ultra Pro Magnum™ GM LS Rockers (16) - Stud Mount Kit w/ Studs & Guide Plates 

*Guide plates require chromemoly pushrods.

More Information
UPC 036584213710
Manufacturer COMP Cams®
Emissions Code
Rocker Arm Ratio 1.8