What kind of torque converter stall speed is recommended for this camshaft?

For 383ci engines, a stall speed of 3500-3700+ RPM is recommended. For 440ci engines, a stall speed of 3000-3300+ RPM is suggested to get the most out of this camshaft.

What compression ratio is ideal for this camshaft?

This camshaft performs best in engines with a static compression ratio of 9.5:1 or higher. This helps to bleed off compression effectively in performance applications.

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 Magnum Camshaft CRB 305H-10 21-243-4

Name: COMP Cams Camshaft CRB 305H-10
Brand: COMP Cams
Price: 330.15 USD
Availability: InStock

COMP Cams Camshaft CRB 305H-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 Magnum CRB 305H-10 camshaft for Chrysler 383-440 engines. Offers improved performance for 9.5:1+ compression.

Key Features

Fits Chrysler B/RB 383, 400, 413, 426 Wedge and 440 engines.
Magnum series camshaft with 253/253 degrees duration at .050 lift.
110-degree lobe separation angle is ideal for performance applications.
Performs best with 9.5:1+ static compression and aftermarket torque converters.
Designed for excellent high RPM power without excessive valve train wear.
Works well with 850 CFM carburetors, headers, and 3.90-4.30 gear ratios.

⚠️ 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 Magnum series camshaft features a 253/253 degree duration at .050 lift and a 110-degree lobe separation angle. This design is well-suited for performance engines, particularly those with a static compression ratio of 9.5:1 or higher, and benefits from an aftermarket torque converter with a higher stall speed, around 3500-3700 RPM for 383ci engines or 3000-3300 RPM for 440ci engines. It's engineered to provide excellent high-RPM power without excessively stressing your valve train components.

The Magnum grind family is a popular choice for building a pro-street style engine. It works best when paired with a large carburetor, like an 850 CFM unit, and a performance exhaust system with headers. For optimal results, consider a gear ratio in the 3.90 to 4.30 range. This camshaft is designed to work effectively with mild ratio rocker arms and traditional performance valve springs, making it a solid option for those looking to upgrade their classic Mopar B or RB engine.

This camshaft fits a wide range of Chrysler, Dodge, and Plymouth vehicles from the late 1950s through the late 1970s, including models like the Dodge Charger, Plymouth Barracuda, and Chrysler New Yorker. It's important to note that this camshaft is not CARB approved and cannot be shipped to California.