What is included in the COMP Cams K-Kit?

This K-Kit is comprehensive, including the XR274R-10 solid roller camshaft, lifters, valve springs, retainers, valve locks, valve stem seals, and a timing chain set. It also comes with assembly lube, decals, and installation instructions.

What kind of idle can I expect with this camshaft?

This XR274R-10 camshaft is designed for serious street/strip applications and will produce a noticeable, lopey idle. This is characteristic of high-performance camshafts that provide increased valve overlap.

What other components are recommended for this camshaft kit?

For optimal performance and reliability, COMP Cams recommends pairing this camshaft with a 9.5:1 compression ratio and a torque converter with a stall speed of 2800 RPM or higher. Proper valvetrain setup is crucial.

COMP Cams Solid Roller Cam Kit XR274R-10 K20-742-9

Name: COMP Cams Camshaft Kit CRS XR274R-10
Brand: COMP Cams
Price: 1722.36 USD
Availability: InStock

COMP Cams Camshaft Kit CRS XR274R-10

$1722.36

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 XR274R-10 solid roller camshaft kit. Serious street/strip performance for Chrysler LA engines.

Key Features

Fits Chrysler 273, 318, 340, and 360 LA-series engines.
This is a complete kit including camshaft, lifters, valve springs, retainers, valve locks, valve stem seals, and timing chain set.
Designed for serious street/strip use with a lopey idle.
Recommended for use with 9.5:1 compression and a 2800+ RPM stall converter.
Includes assembly lube, decals, and instructions for installation.
Solid roller camshaft design for improved performance.

⚠️ 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 building a serious street/strip Mopar LA-series engine, this COMP Cams Xtreme Energy XR274R-10 solid roller camshaft kit is designed to give you a significant performance edge. This kit is intended for applications that demand more power and a more aggressive engine profile, typically paired with a 9.5:1 compression ratio and a torque converter with a stall speed of 2800 RPM or higher. You can expect a noticeable, lopey idle characteristic that signals the serious performance this camshaft brings to your engine.

This isn't just a camshaft; it's a complete package to ensure proper installation and performance. Inside this kit, you'll find the XR274R-10 solid roller camshaft itself, along with a full set of lifters, valve springs, retainers, and valve locks. It also includes valve stem seals, a timing chain set for accurate engine timing, and assembly lube to get everything started smoothly. COMP Cams has included decals and instructions to guide you through the process. This kit is built for performance, fitting a wide range of Chrysler, Dodge, and Plymouth vehicles with LA-series engines like the 273, 318, 340, and 360 cubic inch V8s.

This kit is a substantial upgrade for enthusiasts looking to push the limits of their classic Mopar. It's important to note that this camshaft is not CARB approved and cannot be shipped to California. Ensure your engine build plan aligns with the specifications for compression and stall speed to get the most out of this high-performance camshaft kit.