What is the primary benefit of using this rocker arm kit?

This kit allows you to increase valve lift and engine strength without changing your camshaft. The 1.8 ratio rockers help your engine breathe better, potentially leading to improved performance.

What components are included in this COMP Cams rocker arm kit?

The kit includes a full set of 16 adjustable rocker arms with poly locks, 3/8" studs, and raised guide plates designed for 5/16" pushrods, providing a complete solution for converting to an adjustable valvetrain.

What type of LS engines is this kit designed for?

This kit is specifically made for LS3, L99, L76, and other LS engine applications that feature rectangle-port cylinder heads.

COMP Cams LS3 Rocker Arm Kit 1.8 Ratio 16765-KIT

Name: COMP Cams Rocker Arm KitLS3 1.8 5/16
Brand: COMP Cams
SKU: comp-cams-comp-cams-rocker-arm-kitls3-1-8-5-16-t14-4390732
Price: 901.62 USD
Availability: InStock

COMP Cams Rocker Arm KitLS3 1.8 5/16

$901.62

Only 1 left in stock

COMP Cams LS3 1.8 ratio rocker arm kit for LS3 engines. Improves strength and lift without changing cams.

Key Features

Fits 2007-2017 Cadillac, Chevrolet, GMC, Hummer, and Pontiac vehicles with rectangle-port LS engines.
1.8 ratio rocker arms increase valve lift for improved engine breathing.
Adjustable valvetrain design allows for precise tuning.
Includes 16 Ultra Pro Magnum rockers with poly locks.
Comes with 3/8" studs and raised guide plates for 5/16" pushrods.
Offers increased strength over stock components.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

This is the COMP Cams Ultra Pro Magnum 1.8 Ratio Adjustable Rocker Arm Kit, designed to give your LS3 engine more strength and increased valve lift without needing to swap out your camshaft. It's a popular upgrade for a wide range of GM vehicles equipped with rectangle-port heads, including models like the Chevrolet Camaro, Cadillac CTS, and GMC Sierra. By converting your valvetrain to an adjustable system, you gain more control and can fine-tune performance.

This kit includes a full set of sixteen 1.8 ratio Ultra Pro Magnum stud-mount rockers, complete with poly locks for precise adjustment. You also get the necessary 3/8" studs and raised guide plates, which are specifically designed to work with 5/16" pushrods. This setup allows for a significant increase in valve lift over stock components, helping your engine breathe better and potentially make more power. The adjustable nature of these rockers means you can set them up for optimal performance and ensure they maintain proper geometry as your engine operates.

When you're looking to get more out of your LS3 engine, this COMP Cams kit offers a well-built solution. It provides a complete package for converting to an adjustable valvetrain, giving you the tools to dial in your engine's performance. Make sure to consult the manufacturer's installation instructions for the correct procedure when installing these components.