What is the primary benefit of using a hydraulic roller camshaft and lifter kit?

Hydraulic roller camshafts generally offer reduced friction compared to traditional flat tappet designs. This can lead to improved engine efficiency, better power delivery, and potentially longer component life, especially in performance applications.

What is included in the COMP Cams CL11-422-8 kit?

This kit comes complete with the XR270HR-1 camshaft, matching hydraulic roller lifters, assembly lube for proper installation, decals, and detailed instructions to guide you through the process.

Does this kit require any special modifications for installation?

This kit is designed as a direct replacement for Chevrolet Big Block engines that originally used flat tappet camshafts. While it's a roller setup, it's intended to fit within the existing engine architecture for those specific applications. Always refer to the included instructions for detailed installation procedures.

COMP Cams Hydraulic Roller Cam & Lifter Kit CL11-422-8

Name: COMP Cams Cam & Lifter Kit CB XR270HR-1
Brand: COMP Cams
Price: 1295.51 USD
Availability: InStock

COMP Cams Cam & Lifter Kit CB XR270HR-1

$1295.51

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COMP Cams Cam & Lifter Kit CB XR270HR-1 for Chevrolet Big Block 396-454 engines. Improves mid-range torque for performance applications.

Key Features

Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Hydraulic roller camshaft with 218 intake and 224 exhaust duration.
Includes matching hydraulic roller lifters for reduced friction.
Designed for performance applications, improving mid-range torque.
Works well with headers for enhanced performance.
Kit includes camshaft, lifters, assembly lube, decals, and instructions.

⚠️ 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 XR270HR-1 hydraulic roller camshaft and lifter kit, designed for Chevrolet Big Block 396-454 engines that originally came with flat tappet camshafts. If you're looking to get more out of your big block, this kit is a solid option for improving mid-range torque and overall performance, especially when paired with headers.

Inside this kit, you'll find a well-built hydraulic roller camshaft with a 218-degree intake and 224-degree exhaust duration, along with matching hydraulic roller lifters. Switching to a roller setup like this can reduce friction compared to flat tappet designs, potentially leading to better power delivery and improved engine longevity. The kit also includes essential assembly lube to ensure proper break-in, along with decals and instructions to guide you through the installation process. This setup is particularly well-suited for performance applications where strong mid-range pull is desired.

This kit fits a wide range of Chevrolet vehicles from the late 1960s through the mid-1990s, including popular models like the Chevrolet C10 Pickup, Camaro, and Impala, as well as many others originally equipped with the 396-454 big block engines. Make sure to consult the full fitment list to confirm compatibility with your specific vehicle. Please note that this part is not CARB approved and cannot be shipped to California.