What is the primary benefit of this camshaft for my GM LS engine?

This COMP Cams XFI camshaft is designed to significantly improve your engine's performance, especially at higher RPMs. It's optimized for street and strip use, providing a noticeable increase in power when paired with a compatible intake manifold and proper tuning.

What other components are typically needed when installing this camshaft?

Installing a camshaft often requires additional parts for proper function and longevity. You will likely need an engine programmer to recalibrate the ECU, and it's recommended to consult the manufacturer's installation guide for a complete list of compatible parts and procedures.

Is this camshaft compatible with engines that have VVT or AFM?

No, this specific camshaft (part number 146-428-11) is designed for GM Gen IV engines that do not feature Variable Valve Timing (VVT) or Active Fuel Management (AFM).

COMP Cams GM LS Camshaft 146-428-11

Name: COMP Cams Camshaft GM LS2/LS3 1 Bolt XR
Brand: COMP Cams
Price: 535.41 USD
Availability: InStock

COMP Cams Camshaft GM LS2/LS3 1 Bolt XR

$535.41

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 XFI Hydraulic Roller Camshaft for GM LS engines. Designed for street/strip use with FAST intake.

Key Features

Fits a wide range of GM LS engines, including Cadillac CTS, Chevrolet Camaro, and Pontiac G8.
XFI 228/240 hydraulic roller camshaft profile for improved street and strip performance.
Designed for GM Gen IV engines without VVT or AFM.
Works well with FAST intake manifolds for enhanced power delivery.
Requires an engine programmer for optimal performance and proper operation.
Features a 228-degree intake duration and 240-degree exhaust duration.

⚠️ 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 performance out of your GM LS engine, a camshaft upgrade is one of the most effective ways to change how your engine breathes and makes power. This XFI 228/240 hydraulic roller camshaft from COMP Cams is built for those who want improved performance on the street and at the drag strip, especially when paired with a FAST intake manifold. It's designed for GM Gen IV engines that do not have Variable Valve Timing (VVT) or Active Fuel Management (AFM).

This camshaft features a 228-degree intake duration and a 240-degree exhaust duration, with a 114-degree lobe separation angle. These specs are chosen to provide a noticeable bump in power, particularly at higher RPMs, while still being manageable for street driving. Because it's a hydraulic roller design, it offers better performance and durability than older flat-tappet cams. Keep in mind that installing a camshaft like this often requires recalibrating your engine's computer, so you'll need a programmer to get the most out of it and ensure proper operation. It's a well-built component that can make a significant difference in your engine's personality.

This camshaft fits a wide range of GM vehicles, including models like the Cadillac CTS, Chevrolet Camaro, and Pontiac G8. It's important to note that this part is not CARB approved and cannot be shipped to California. For optimal performance and longevity, always refer to the manufacturer's installation instructions, which will detail any other necessary components or procedures for your specific application.