COMP Cams Camshaft Kit FS 299Th R7 Thumper

If you're looking to build a serious street/strip machine for your Ford small block, this COMP Cams Big Mutha' Thumpr camshaft kit is a solid choice. This kit is designed for Ford 221, 255, 260, 289, and 302 engines, fitting a wide range of vehicles from classic Mustangs and Fairlanes to later model LTDs and Thunderbirds. It's built to deliver a very rough idle and aggressive performance, making it ideal for those who want their engine to sound as wild as it performs.

This isn't just a camshaft; it's a complete valvetrain package. Inside the box, you'll find the camshaft itself, hydraulic roller lifters, performance valve springs, retainers, valve locks, and valve stem seals. COMP Cams also includes a timing chain set to ensure proper synchronization, assembly lube to get everything started right, and even decals and instructions to guide you through the process. To get the most out of this camshaft, you'll need at least 9.5:1 compression, a 2800+ RPM stall torque converter if you have an automatic transmission, and a good intake, rear gears, and headers to help your engine breathe.

This kit is a significant upgrade for your engine's performance. The camshaft profile is aggressive, designed for maximum power in the upper RPM range, which is why it produces that characteristic rough idle. It's a popular choice for builders aiming for a powerful street rod or a competitive strip car. Remember, this kit is not CARB approved and cannot be shipped to California.