About This Product
Comp Cams Valvetrain Components
1.8 Pro Magnum Roller Rocker Arm Kit
The COMP Cams 1.8 Pro Magnum roller rocker arm kit is a premium LS valvetrain upgrade built for strength, stability, and increased lift potential. These rockers use a 1.8 ratio instead of the factory 1.7, making them a great option for gaining lift without changing camshafts, while also providing the added durability needed for aftermarket valve spring applications.
Part Information
- Brand: COMP Cams
- SKU: CMP-16755-KIT
- Configuration: 1.8 ratio stud-mount roller rocker kit
Fitment
- Fits LS1, LS2, LS6
- Fits 4.8L, 5.3L, and pre-2007 6.0L truck engines
- Designed for cathedral-port head LS applications
- Rectangle-port versions are available separately for LS3, L99, L76 style applications
Features
COMP Cams developed these Ultra Pro Magnum rocker arms specifically for LS engines, using upgraded materials and valvetrain geometry to improve both performance and durability.
- 1.8 rocker ratio helps increase lift without swapping cams
- Investment-cast 8650 chromoly steel body is stronger, stiffer, and more durable than stock
- Upgraded trunnions and needle bearings improve strength over factory rockers
- Roller tip design replaces the factory slider style
- Excellent choice for use with aftermarket valve springs
- Limited lifetime warranty on rocker bodies against breakage
Kit Includes
- Full set of 16 stud-mount rockers with poly locks
- 3/8 inch studs
- Raised guide plates for 5/16 inch pushrods
Important Notes
- Pushrods not included and are sold separately
- Stud-mount design converts GM LS to a more adjustable valvetrain
- Great for increasing strength over stock while adding lift
Note:
This kit is a strong upgrade for cathedral-port LS builds needing more rocker ratio, improved valvetrain stability, and added durability for performance spring and cam combinations.
