

Specifications
- Brand
- COMP Cams
- Part #
- GK08-602-8
- UPC
- 036584183419

COMP Cams Camshaft Kit CS 299T HR-107 B
$1261.81
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COMP Cams Big Mutha' Thumpr hydraulic roller camshaft kit for OE Roller SBC. Expect a very rough idle.
Key Features
- Fits '87+ GEN 1 Chevrolet 305-350 Small Blocks w/ Factory Roller Camshafts (Not LT-1/LS1 etc).
- Hydraulic roller camshaft design for improved performance and durability.
- Big Mutha' Thumpr series camshaft with a 243/257 duration profile.
- Requires 9.5:1 compression, 2800+ stall converter, upgraded intake, gears, and headers.
- Produces a very rough idle, suitable for street/strip applications.
- Includes camshaft, lifters, springs, retainers, and valve locks for a complete kit.
⚠️ 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 engine components, and their Big Mutha' Thumpr camshafts are designed for drivers who want a serious statement from their engine. This particular kit, the CS 299T HR-107 B, is a hydraulic roller camshaft engineered for OE Roller Small Block Chevrolet engines from 1987 and newer, excluding LT-1 and LS1 variants. It's built for street/strip applications and will give your engine a very rough idle, letting everyone know it means business.
To get the most out of this camshaft, you'll need to ensure your engine setup can support its aggressive profile. COMP Cams recommends a minimum of 9.5:1 compression, a 2800+ RPM stall speed torque converter if you have an automatic transmission, and you'll also need to upgrade your intake, gearing, and headers. This isn't a mild upgrade; it's for those looking to significantly change their engine's personality and performance characteristics for demanding use.
This kit is designed to fit a wide range of vehicles from 1987 onwards, including popular models like the Chevrolet Camaro, Corvette, and various C/K series trucks. When installing this camshaft, remember that it's intended for performance use and will result in a rough idle. Make sure all supporting modifications are in place to properly tune and utilize the camshaft's capabilities for optimal street and strip performance.
Specifications
- Brand
- COMP Cams
- Manufacturer Part #
- GK08-602-8
- UPC
- 036584183419
Frequently Asked Questions
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COMP Cams Camshaft Kit CS 299T HR-107 B
