What is the intended idle characteristic of this camshaft?

This COMP Cams CRB 284H camshaft is designed to produce a noticeable, lopey idle. This is a common characteristic for performance camshafts that aim for a classic muscle car sound and feel.

What other components are included in this kit besides the camshaft?

This is a complete K-Kit, meaning it includes all the necessary parts for installation. You'll find hydraulic lifters, valve springs, retainers, valve locks, valve stem seals, and a timing chain set, along with assembly lube and instructions.

What compression ratio and stall speed are recommended for this camshaft?

For optimal performance with this camshaft, COMP Cams recommends a minimum compression ratio of 9.5:1 and a stall speed of 2800 RPM or higher for vehicles with automatic transmissions.

COMP Cams Camshaft Kit CRB 284H PP484 K21-671-4

Name: COMP Cams Camshaft Kit CRB 284H PP484
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-kit-crb-284h-pp484-t14-4396564
Price: 730.29 USD
Availability: BackOrder

COMP Cams Camshaft Kit CRB 284H PP484

$730.29

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 Camshaft Kit CRB 284H PP484 K21-671-4. This kit offers strong mid-range power and a noticeable idle for Chrysler B/RB engines.

Key Features

Fits Chrysler B/RB 383, 400, 413, 426 Wedge and 440 engines.
Includes camshaft, lifters, valve springs, retainers, valve locks, and valve stem seals.
Complete kit also contains a timing chain set and assembly lube for flat tappet applications.
Provides strong mid-range power with a noticeable, lopey idle.
Designed as a replacement for the popular 484 camshaft.
Requires 2800+ RPM stall speed and 9.5:1 compression for optimal performance.

⚠️ 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 looking to wake up your Chrysler B or RB engine, this COMP Cams Camshaft Kit K21-671-4 is a solid choice. It's designed for the 383, 400, 413, 426 Wedge, and 440 cubic inch engines found in a wide range of Mopar vehicles from the late 50s through the late 70s, including models like the Dodge Charger, Plymouth Barracuda, and Chrysler New Yorker. This kit replaces the popular 484 cam and aims to give you strong performance in the mid-range with a distinct, lopey idle that many enthusiasts appreciate.

This isn't just a camshaft; it's a complete package to get your engine running with its new profile. Inside this kit, you'll find the CRB 284H camshaft itself, along with a full set of hydraulic lifters, valve springs, retainers, valve locks, and valve stem seals. To ensure proper timing and installation, it also includes a timing chain set and assembly lube, as this is a flat tappet application. COMP Cams has put together everything you need to make the swap, including detailed instructions to guide you through the process.

To get the most out of this camshaft, COMP Cams recommends a minimum of 9.5:1 compression and a stall speed of 2800 RPM or higher for automatic transmissions. This setup is intended to provide a noticeable improvement in the mid-range power band, making your engine feel more responsive when you need it. While this kit is not CARB approved and cannot be shipped to California, it's a well-known option for those looking to add some classic muscle car sound and performance to their Mopar B/RB engine.