What is the primary benefit of a hydraulic roller camshaft over a flat tappet design?

Hydraulic roller camshafts generally offer reduced friction and wear compared to flat tappet designs. This can lead to a longer lifespan for the camshaft and consistent performance over time, as well as potentially allowing for more aggressive cam profiles.

Does this camshaft require special valve springs or lifters?

This camshaft is designed to work with factory roller lifters. However, it is recommended to check the manufacturer's specific installation instructions for compatible valve spring requirements, as an upgrade may be necessary to properly control the valve train with the new cam profile.

Can this camshaft be used in California vehicles?

No, this camshaft is not CARB approved and cannot be legally shipped to or installed on vehicles in California due to emissions regulations.

COMP Cams Camshaft 35-510-8 Xtreme Energy Hydraulic Roller -

Name: COMP Cams Camshaft FW XE258HR-12
Brand: COMP Cams
Price: 610.12 USD
Availability: InStock

COMP Cams Camshaft FW XE258HR-12

$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 Xtreme Energy hydraulic roller camshaft for Ford 5.0L and 351W engines. Offers improved performance for computer-controlled applications.

Key Features

Fits Ford 5.0L and 351W engines with factory roller camshafts.
Xtreme Energy computer-controlled hydraulic roller camshaft.
Intake duration at .050 inch lift is 208 degrees.
Exhaust duration at .050 inch lift is 216 degrees.
Designed for improved performance in computer-controlled applications.
Offers a strong mid-range powerband for better acceleration.

⚠️ 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 COMP Cams Xtreme Energy camshaft features a 208-degree intake and 216-degree exhaust duration at .050 inch lift, a design choice that balances improved airflow with street drivability for computer-controlled Ford 5.0L and 351W engines equipped with factory roller camshafts. This camshaft is designed to work with your vehicle's existing computer system, making it a straightforward upgrade for those looking to enhance their engine's performance without needing a full engine management system overhaul. It's a popular choice for Mustang, Bronco, and F-150 owners seeking a noticeable increase in power and torque.

The hydraulic roller design means less friction and wear compared to flat tappet cams, contributing to a longer lifespan and consistent performance. This particular grind, the XE258HR-12, is known for its strong mid-range powerband, which translates to better acceleration and responsiveness when you need it most. While it's a significant upgrade, it's engineered to be compatible with factory roller lifters, simplifying the installation process. You can expect a more aggressive engine note and a more engaging driving experience after installation.

When installing this camshaft, it's important to follow the manufacturer's recommended procedures, which typically involve checking valve spring compatibility and ensuring proper break-in. This camshaft is not CARB approved and cannot be shipped to California. It's a solid option for enthusiasts looking to get more out of their classic Ford V8.