What kind of idle can I expect with this camshaft?

This camshaft is designed for a very rough idle, often referred to as a 'lumpy' idle. This is a characteristic of aggressive camshafts intended for street/strip performance builds.

What other modifications are recommended when installing this camshaft?

For optimal performance, it's recommended to pair this camshaft with at least 9.5:1 compression, a torque converter with a 2800+ RPM stall speed, an upgraded intake manifold, and headers. These components help the engine breathe and utilize the camshaft's aggressive profile.

Is this camshaft compatible with all Chrysler engines?

This camshaft is specifically designed for Chrysler B and RB series engines, including the 383, 400, 413, 426 Wedge, and 440. It is not intended for LA series engines or other Mopar engine families.

COMP Cams Hydraulic Flat Cam 21-602-5 - Chrysler B/RB 383-44

Name: COMP Cams Camshaft CRB 295T H-107 T Thu
Brand: COMP Cams
Price: 387.30 USD
Availability: InStock

COMP Cams Camshaft CRB 295T H-107 T Thu

$387.30

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams Big Mutha' Thumpr camshaft for Chrysler B/RB 383-440 engines. Hydraulic flat tappet design for street/strip use.

Key Features

Fits Chrysler B/RB 383, 400, 413, 426 Wedge and 440 engines.
Hydraulic flat tappet design for reliable operation.
Aggressive 243/257 degree duration split for a very rough idle and strong top-end power.
Designed for street/strip applications.
Requires 9.5:1 compression, 2800+ RPM stall torque converter, intake, and headers for optimal performance.
Manufactured by COMP Cams.

⚠️ 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

If you're building a street/strip Mopar with a Chrysler 383, 400, 413, 426 Wedge, or 440 engine, this Big Mutha' Thumpr camshaft from COMP Cams is designed to give you that aggressive idle and strong top-end power you're looking for. It's a hydraulic flat tappet camshaft, meaning it uses a simple and reliable valvetrain design that's common in these classic Mopar big blocks.

This camshaft features a 243/257 degree duration split, which is pretty aggressive and will definitely give you that very rough idle that signals serious performance. To make the most of this cam, you'll want to pair it with a setup that includes at least 9.5:1 compression, a torque converter with a stall speed of 2800 RPM or higher, a good intake manifold, and headers. This combination will help you harness the power this cam unlocks, especially at higher RPMs.

This camshaft is a popular choice for those looking to extract maximum performance from their B or RB series Mopar engines. It's built by COMP Cams, a well-known name in performance engine components, ensuring a well-built part for your build.