What kind of idle can I expect with the COMP Cams XR270Rf-HR10 camshaft?

This camshaft is designed for improved mid-range performance and features a profile that results in a noticeable idle. This means you'll likely hear a more aggressive sound from your engine at idle compared to a stock camshaft.

What gear ratio and torque converter are recommended for this camshaft?

For optimal performance with the XR270Rf-HR10 camshaft, COMP Cams recommends using a gear ratio of 3.23 or higher. It is also compatible with stock torque converters or aftermarket converters with a stall speed of 1800 RPM or higher.

Is this camshaft legal for use in California?

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

COMP Cams XR270Rf-HR10 Camshaft 35-421-8

Name: COMP Cams Camshaft FW XR270Rf-HR10
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-fw-xr270rf-hr10-t14-4391891
Price: 610.12 USD
Availability: BackOrder

COMP Cams Camshaft FW XR270Rf-HR10

$610.12

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 XR270Rf-HR10 hydraulic roller camshaft for Ford 351W. Noticeable idle, good mid-range performance.

Key Features

Fits Ford 351 Windsor engines.
Xtreme Energy hydraulic roller camshaft design.
Intake duration of 218 degrees and exhaust duration of 224 degrees.
Designed for good mid-range performance.
Suitable for use with 3.23+ gear ratios.
Works with stock torque converters or those with 1800+ RPM stall.

This camshaft is designed for Ford 351 Windsor engines. Please verify compatibility with your specific vehicle application.

⚠️ 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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Product Details

This is the COMP Cams Xtreme Energy XR270Rf-HR10 hydraulic roller camshaft, designed for Ford 351 Windsor engines. If you're looking to improve your engine's mid-range performance and are comfortable with a more noticeable idle, this camshaft is a solid option. It's built for engines with 3.23 or higher gear ratios and either a stock torque converter or one with at least an 1800 RPM stall speed.

The Xtreme Energy line from COMP Cams is well-known for delivering improved performance across a wide range of applications. This particular camshaft features a 218-degree intake duration and a 224-degree exhaust duration, which helps to create a strong powerband in the mid-RPM range. Because it's a hydraulic roller camshaft, it offers reduced friction and wear compared to flat tappet designs, contributing to its longevity and efficiency. The noticeable idle is a characteristic of cams with this profile, indicating a more aggressive tune that translates to better breathing for your engine.

When installing this camshaft, remember that it's not CARB approved and cannot be shipped to California. Ensure your vehicle's drivetrain is set up to handle the increased mid-range torque, particularly with the recommended gear ratios and torque converter stall speed. This camshaft is a significant upgrade for your 351W, offering a distinct improvement in how your engine performs when you need it most.