COMP Cams Camshaft FS 279T H-107 T Thumper

This COMP Cams Thumpr camshaft, part number 31-601-5, is designed to give your Ford Small Block engine a distinct, aggressive idle that sounds like a race car. It's built to provide noticeable horsepower gains and a wider torque curve, making it a popular choice for muscle cars and street rods. The camshaft's design features an early intake valve opening and extended exhaust duration, which creates significant valve overlap. This overlap is what produces that characteristic choppy, thumping idle that many enthusiasts look for.

To get the most out of this camshaft and ensure your drivetrain keeps the engine in its optimal powerband, it's recommended to use an aftermarket torque converter, ideally one rated for 2000 RPM or higher, along with lower gear ratios. You'll also want to be aware that this camshaft typically results in reduced vacuum at idle. If your vehicle uses power brakes, you'll need to install a vacuum canister, vacuum pump, or hydroboost system to compensate for this reduced vacuum.

This camshaft fits a wide range of Ford vehicles, including popular models like the Mustang, Fairlane, and Torino, as well as many others from the 1960s through the early 1990s. It's a well-built component that changes the character of your engine's idle and performance.