What is the primary benefit of the XE274S-10 camshaft?

The XE274S-10 camshaft is designed to provide a strong mid-range power band, which translates to improved acceleration and responsiveness for street and strip applications. It's a popular choice for waking up classic Mopar big block engines.

Do I need to purchase additional parts with this camshaft?

This product is a camshaft only. For a complete valvetrain setup, you will need to purchase compatible lifters, valve springs, retainers, and pushrods separately. COMP Cams also offers complete kits that include these components.

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

For optimal performance, this camshaft is recommended for use with approximately 9.5:1 compression ratio and a torque converter rated for a 2800+ stall speed. These specifications help to maximize the camshaft's strong mid-range power output.

COMP Cams XE274S-10 Camshaft 23-231-4

Name: COMP Cams Camshaft CRB3 XE274S-10
Brand: COMP Cams
Price: 313.97 USD
Availability: InStock

COMP Cams Camshaft CRB3 XE274S-10

$313.97

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 XE274S-10 solid flat camshaft. Designed for Chrysler 383-440 engines, offering strong mid-range power for street/strip use.

Key Features

Fits Chrysler 383, 400, 413, 426 Wedge, and 440 engines.
Solid flat tappet camshaft design.
Intake duration at .050 inch lift is 236 degrees.
Exhaust duration at .050 inch lift is 242 degrees.
Designed for street/strip use with strong mid-range power.
Recommended for applications with 9.5:1 compression and 2800+ stall speed torque converters.

⚠️ 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 XE274S-10 camshaft, a solid flat tappet grind specifically for Chrysler 383, 400, 413, 426 Wedge, and 440 cubic inch engines. It's built for serious street and strip applications, aiming to give you a strong mid-range power band. This camshaft is a popular choice when you're looking to wake up a classic Mopar big block, especially when paired with around 9.5:1 compression and a torque converter with a 2800+ stall speed.

The XE274S-10 features a 236-degree intake and 242-degree exhaust duration at .050 inch lift, which is a well-known combination for producing noticeable torque gains in the crucial mid-RPM range. This means better acceleration out of corners and a more responsive feel when you're driving hard. COMP Cams uses their Xtreme Energy lobe profiles for this camshaft, which are designed to offer improved performance without sacrificing too much streetability, though it is a solid lifter cam so it requires more diligent maintenance than a hydraulic setup.

Keep in mind this is a camshaft only; if you're looking for a complete package with lifters, springs, and other necessary components, you'll want to check out their K-Kit options. This camshaft is not CARB approved and cannot be shipped to California.