What is the primary benefit of installing this camshaft?

This COMP Cams camshaft is designed to provide a noticeable increase in power and torque over your stock LS engine. It offers strong mid-range pull and aims to maintain good fuel mileage.

What supporting modifications might be needed when installing this camshaft?

When upgrading your camshaft, it's often recommended to inspect and potentially replace valve springs, pushrods, and the timing set to ensure compatibility and optimal performance with the new cam's specifications.

Is this camshaft legal for sale in California?

No, this camshaft is not CARB approved and cannot be shipped to California due to emissions regulations.

COMP Cams Camshaft XR259HR-12 54-408-11

Name: COMP Cams Camshaft LS1 XR259HR-12
Brand: COMP Cams
Price: 618.41 USD
Availability: InStock

COMP Cams Camshaft LS1 XR259HR-12

$618.41

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams XR259HR-12 hydraulic roller camshaft for GM LS engines. Noticeable increase over stock with strong torque and good mileage.

Key Features

Fits 4.8, 5.3, 5.7, 6.0, 6.2 and 7.0 Liter LS1, LS2, LS3, LS4, LS6, LS7 plus SUV and Truck Engines.
Hydraulic roller camshaft design for improved efficiency and reduced wear.
Intake duration of 206 degrees and exhaust duration of 212 degrees.
112-degree lobe separation angle for a noticeable increase over stock.
Provides strong torque and good mileage.
Designed for GM LS GEN III/IV engines.

⚠️ 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

If you're looking to get more out of your GM LS engine, a camshaft upgrade can make a big difference. This COMP Cams XR259HR-12 hydraulic roller camshaft is designed to give you a noticeable increase in power and torque over the stock setup, while still maintaining good drivability and mileage. It's a popular choice for owners of a wide range of vehicles, from Chevrolet Camaros and Corvettes to Cadillac Escalades and GMC Sierras, looking for improved performance without sacrificing too much of the factory feel.

This camshaft features a 206-degree intake and 212-degree exhaust duration with a 112-degree lobe separation angle. This specific grind is engineered to work well with various LS displacements, including 4.8L through 7.0L engines, and is compatible with different cylinder head designs. The hydraulic roller design means less friction and wear compared to older flat-tappet cams, contributing to its longevity and efficiency. You can expect a strong pull in the mid-range, making it feel more responsive when you get on the throttle.

When installing a camshaft like this, it's important to ensure you have all the necessary supporting components. This includes checking your valve springs, pushrods, and potentially your timing set to make sure they are compatible with the new cam's specifications. Always refer to the manufacturer's installation instructions for the most accurate guidance on the process and any specific requirements for your engine. This camshaft is not CARB approved and cannot be shipped to California.