What kind of idle can I expect with this camshaft?

This is an aggressive camshaft designed for significant performance gains, so you can expect a very rough idle. This characteristic is common for cams of this size and intended use.

What other engine components do I need to install this camshaft kit?

To properly utilize this camshaft, you will need at least 9.5:1 compression, a torque converter with a stall speed of 2800 RPM or higher, an upgraded intake manifold, headers, and appropriate gearing.

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 Roller Camshaft Kit GK35-602-8

Name: COMP Cams Camshaft Kit FW 299T HR-107 B
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-kit-fw-299t-hr-107-b-t14-4396170
Price: 1760.87 USD
Availability: BackOrder

COMP Cams Camshaft Kit FW 299T HR-107 B

$1760.87

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 Big Mutha' Thumpr hydraulic roller camshaft kit for Ford 351W. Ideal for street/strip builds needing significant power.

Key Features

Fits 1981-1995 Ford Bronco, 1969-1974 Ford Country Sedan, 1969-1974 Ford Country Squire, and many other Ford vehicles.
Big Mutha' Thumpr 243/257 hydraulic roller camshaft.
Designed for street/strip applications.
Requires 9.5:1 compression ratio.
Requires a 2800+ RPM stall torque converter.
Needs upgraded intake, gears, and headers for optimal performance.

⚠️ 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

COMP Cams is well-known for making performance engine parts that help you get the most out of your vehicle. This Big Mutha' Thumpr camshaft kit is designed for Ford 351 Windsor engines, offering a significant upgrade for those looking to build a powerful street or strip machine. It’s a hydraulic roller camshaft, which generally means less friction and more efficient operation compared to flat tappet designs.

This particular camshaft has a 243-degree intake duration and a 257-degree exhaust duration at 0.050 inch lift, with a 107-degree lobe separation angle. To make the most of this cam, you'll want at least 9.5:1 compression and a torque converter with a stall speed of 2800 RPM or higher. You'll also need to pair it with a suitable intake manifold, headers, and appropriate gearing to really unlock its potential. Expect a very rough idle, which is characteristic of aggressive cams like this one, signaling serious performance intent.

This kit is designed to fit a wide range of Ford vehicles, including models like the Bronco, F-150, and E-Series vans from various years. It's important to note that this camshaft is not CARB approved and cannot be shipped to California. For optimal results and longevity, always refer to the manufacturer's installation instructions and ensure all supporting components are up to the task.