What kind of idle can I expect with this camshaft?

This COMP Cams Thumper camshaft is designed to produce a noticeable choppy and thumping idle. This sound is characteristic of many high-performance street cams and is a key part of its appeal.

What is the best setup to use with this camshaft?

While this camshaft can function with a stock torque converter, it performs best when paired with a torque converter rated for 2000 RPM or higher and suitable rear-end gears. This setup helps maximize the cam's performance gains.

Is this camshaft legal for use in California?

No, this camshaft is not CARB approved and cannot be shipped to California due to emissions regulations.

COMP Cams Hydraulic Flat Cam 51-600-5 for Pontiac V8

Name: COMP Cams Camshaft P8 279T H-107 T Thumper
Brand: COMP Cams
Price: 378.83 USD
Availability: InStock

COMP Cams Camshaft P8 279T H-107 T Thumper

$378.83

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Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams Thumper camshaft for Pontiac 265-455 V8 engines. Creates a choppy idle for a high-performance street feel.

Key Features

Fits a wide range of Pontiac 265-455 V8 engines, including models like the Firebird, Grand Prix, and Catalina.
Features a 227/241 degree intake/exhaust duration at .050 lift for improved performance.
Produces a choppy, thumping idle for a classic muscle car sound.
Suitable for high-performance street applications.
Works with stock torque converters, but performs best with a 2000+ RPM stall converter and appropriate gears.
COMP Cams part number 51-600-5.

⚠️ 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 is the COMP Cams P8 279T H-107 T Thumper camshaft, designed for a wide range of Pontiac V8 engines from 265 to 455 cubic inches. If you're looking to give your classic Pontiac a more aggressive, high-performance street personality, this camshaft is a solid option. It's built to provide that distinctive choppy, thumping idle that many enthusiasts associate with muscle cars.

While it can work with a stock torque converter, this camshaft really shines when paired with a 2000+ RPM stall converter and appropriate rear-end gears. This combination will help you take full advantage of the cam's improved performance characteristics, especially off the line. The 227/241 degree intake and exhaust duration at .050 lift are chosen to balance street drivability with a noticeable performance bump.

Keep in mind that this camshaft is not CARB approved and cannot be shipped to California. For optimal results and to ensure proper operation, it's always a good idea to consult the manufacturer's installation instructions and consider pairing it with other performance-oriented engine components.