What kind of idle can I expect with this camshaft?

This Xtreme Energy camshaft is designed for performance and will produce a noticeable, rough idle. This is typical for aggressive street/strip cams and indicates it's ready for action.

What supporting modifications are recommended for this camshaft?

COMP Cams suggests this camshaft is best used with a 2800+ RPM stall torque converter, headers, and a gear change. Ensuring your valvetrain components are in good condition is also important.

Can this camshaft be shipped to California?

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

COMP Cams Camshaft FS XE284H-10 31-250-4

Name: COMP Cams Camshaft FS XE284H-10
Brand: COMP Cams
Price: 330.15 USD
Availability: InStock

COMP Cams Camshaft FS XE284H-10

$330.15

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 camshaft for Ford 221-302 engines. Ideal for street/strip builds with headers and gears.

Key Features

Fits Ford 221, 255, 260, 289, and 302 small block engines.
Xtreme Energy hydraulic flat tappet camshaft.
Intake duration at .050 inch lift: 240 degrees.
Exhaust duration at .050 inch lift: 246 degrees.
Designed for street/strip applications.
Works well with 2800+ RPM stall converters, headers, and gear changes.

⚠️ 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

When you're building a street/strip Ford small block, this COMP Cams Xtreme Energy camshaft is what you get in the box. It's designed for Ford 221, 255, 260, 289, and 302 engines, offering an improved performance profile for vehicles like the Ford Bronco, F-150, and Mustang.

This camshaft features a 240/246 degree duration at .050 lift, which is a solid choice for street performance applications that also see track time. It's built to work well with a 2800+ RPM stall torque converter, headers, and a gear change, giving you that extra kick when you need it. Expect a noticeable, rough idle with this cam, which is part of its aggressive street/strip character. It’s a well-built component designed to handle the demands of spirited driving and occasional track use.

For optimal performance and longevity, COMP Cams recommends pairing this camshaft with appropriate supporting modifications and ensuring your valvetrain is in good condition. Remember, this camshaft is not CARB approved and cannot be shipped to California.