What kind of idle sound can I expect from this camshaft?

This COMP Cams Thumpr camshaft is specifically designed to produce a noticeable choppy or thumping idle sound, which is a popular characteristic for performance street engines.

What is included in this camshaft and lifter kit?

The kit comes complete with the camshaft itself, a set of matching lifters, assembly lube for proper installation and break-in, decals, and detailed installation instructions from COMP Cams.

Do I need to upgrade my torque converter and rear-end gears with this cam?

While the camshaft can function with a stock torque converter, it is recommended to use a torque converter with a stall speed of 2000 RPM or higher, along with appropriate rear-end gearing, for optimal performance.

COMP Cams Cam & Lifter Kit CL31-600-8 - Ford Small Block

Name: COMP Cams Cam & Lifter Kit FS 283Th R7
Brand: COMP Cams
Price: 963.12 USD
Availability: InStock

COMP Cams Cam & Lifter Kit FS 283Th R7

$963.12

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 Cam & Lifter Kit FS 283Th R7. Gives your Ford small block a choppy idle and improved performance.

Key Features

Fits Ford 221, 255, 260, 289 and 302 small block engines.
Hydraulic roller camshaft with 227/241 degrees intake/exhaust duration.
Designed for high-performance street use with a choppy/thumping idle.
Works with stock torque converters, but best with 2000+ RPM stall converters and gears.
Kit includes camshaft, lifters, assembly lube, decals, and instructions.
Not CARB approved and cannot be shipped to California.

⚠️ 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 give your Ford small block engine a serious performance upgrade with a distinctive sound, this COMP Cams Thumpr camshaft and lifter kit is a solid choice. This kit is designed for Ford 221, 255, 260, 289, and 302 cubic inch engines, commonly found in a wide range of classic Ford and Mercury vehicles from the 1960s through the early 1990s, like the Ford Mustang, Fairlane, and Mercury Cougar. It's built for high-performance street use and is known for producing that classic choppy, thumping idle that enthusiasts love.

This kit includes a hydraulic roller camshaft with a 227/241 degree intake/exhaust duration, along with a matching set of lifters to ensure proper valve train operation. COMP Cams also includes assembly lube to help with installation and break-in, plus decals and instructions to guide you through the process. While it can work with a stock torque converter, you'll see the best results and an improved driving experience with a 2000+ RPM stall converter and appropriate rear-end gearing. This setup is a popular way to wake up an older Ford V8.

When installing a new camshaft and lifter kit, it's always a good idea to inspect your valve springs and pushrods to ensure they are in good condition and compatible with the new cam's specifications. Always refer to the included manufacturer instructions for the precise break-in procedure, as this is critical for the longevity of your new camshaft and lifters.