What supporting modifications are essential for this camshaft kit?

For optimal performance and to prevent engine damage, this camshaft kit requires a minimum of 9:1 compression ratio. You'll also need a torque converter with at least a 2500 RPM stall speed, an upgraded intake manifold, appropriate rear axle gears, and performance headers.

What exactly is included in this K-Kit?

This comprehensive K-Kit includes the camshaft, hydraulic roller lifters, valve springs, retainers, valve locks, valve stem seals, and a timing chain set. It also comes with assembly lube for installation and detailed instructions.

Will this camshaft kit fit my 1970 Dodge Challenger?

Yes, this camshaft kit is designed for the Chrysler 318, 340, and 360 cubic inch LA engines, which were commonly found in vehicles like the 1970 Dodge Challenger. It is a direct fit for those engine displacements.

COMP Cams Hydraulic Roller Cam Kit K20-601-9

Name: COMP Cams Camshaft Kit CRS 291T HR-7 MT
Brand: COMP Cams
Price: 1826.04 USD
Availability: InStock

COMP Cams Camshaft Kit CRS 291T HR-7 MT

$1826.04

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 Mutha' Thumpr hydraulic roller camshaft kit for Chrysler 273-360 LA engines. Designed for high-performance street/strip builds.

Key Features

Fits Chrysler 273, 318, 340, and 360 LA engines.
Hydraulic roller camshaft with 235/249 degrees of duration.
Designed for high-performance street/strip applications.
Requires 9:1 compression, 2500+ stall converter, intake, gears, and headers.
Kit includes camshaft, lifters, valve springs, retainers, locks, seals, and timing set.
Assembly lube and installation instructions are provided.

⚠️ 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 Mutha' Thumpr camshaft kit, featuring a 235/249 degree hydraulic roller camshaft, is built for Chrysler's LA series engines, specifically the 273, 318, 340, and 360 cubic inch V8s. It's designed for a high-performance street and strip application, requiring a minimum of 9:1 compression, a 2500+ RPM stall torque converter, and supporting modifications like an upgraded intake, rear gears, and headers to perform at its best. Expect a noticeable, rough idle characteristic of a performance camshaft of this caliber.

This is a complete K-Kit, meaning it includes everything you need to get the new camshaft installed and running. You'll find the camshaft itself, a set of hydraulic roller lifters, matching valve springs, retainers, and valve locks. It also comes with valve stem seals to ensure proper sealing, a timing chain set for accurate valve timing, and assembly lube to protect the components during initial startup. Decals and detailed instructions are also included to guide you through the installation process.

This kit is a significant upgrade for enthusiasts looking to extract more power from their classic Mopar V8. It's important to note that this camshaft is not CARB approved and cannot be shipped to California. Ensure your engine build meets the specified compression and supporting component requirements for optimal performance and longevity.