

Specifications
- Brand
- COMP Cams
- Part #
- CL11-602-8
- UPC
- 036584153481

COMP Cams Cam & Lifter Kit CB 299T HR-7
$1295.51
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COMP Cams Big Mutha'Thumpr hydraulic roller cam and lifter kit for Chevy Big Block 396-454 engines. Features a very rough idle for a noticeable presence.
Key Features
- Fits Chevrolet GEN IV 396-454 Big Block Engines Originally Equipped with Flat Tappet Camshafts.
- Hydraulic roller camshaft and lifter kit for aggressive street/strip performance.
- Camshaft specifications require 9.5:1 compression, 2800+ RPM stall converter, intake, gears, and headers.
- Produces a very rough idle, characteristic of the Big Mutha'Thumpr series.
- Kit includes camshaft, hydraulic roller lifters, assembly lube, and decals.
- Designed for a wide range of Chevrolet vehicles from 1967-1986.
⚠️ 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
Product Details
COMP Cams is well-known for performance camshafts and valvetrain components, and this Big Mutha'Thumpr hydraulic roller cam and lifter kit is a prime example of their commitment to power. This kit, part number CL11-602-8, is designed for Chevrolet Big Block engines, specifically the 396 through 454 cubic inch displacements that originally came with flat tappet camshafts. If you're looking to give your classic Chevy a serious dose of aggressive performance, this kit is engineered to make a statement.
The CB 299T HR-7 camshaft profile is built for street/strip applications, meaning it’s intended for vehicles that see regular driving but are also taken to the drag strip. To get the most out of this cam, you'll need a solid foundation: a minimum of 9.5:1 compression ratio, a torque converter with at least a 2800 RPM stall speed, and supporting modifications like an upgraded intake manifold, proper gearing, and headers. Expect a very rough idle with this camshaft; it’s a signature characteristic of the Big Mutha'Thumpr series, letting everyone know you mean business.
This kit includes the camshaft itself, a set of hydraulic roller lifters, assembly lube to ensure proper break-in, and decals. It's designed to fit a wide range of Chevrolet vehicles from the late 1960s through the early 1980s, including popular models like the Chevelle, Impala, and C10 Pickup. Remember that this camshaft is not CARB approved and cannot be shipped to California. Always refer to the included instructions for proper installation and break-in procedures.
Specifications
- Brand
- COMP Cams
- Manufacturer Part #
- CL11-602-8
- UPC
- 036584153481
Frequently Asked Questions
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