COMP Cams Camshaft Kit FF 291Th R7 Thumper

This COMP Cams Mutha' Thumpr camshaft kit, part number K34-601-9, is built around a hydraulic roller camshaft with a 235/249 degree duration. This specific camshaft profile is designed for high-performance street and strip applications, requiring at least 9:1 compression and a 2500+ RPM stall speed torque converter to perform optimally. It's intended for use with upgraded intake, gears, and headers to help your engine breathe freely.

When you choose this K-Kit, you're getting a complete package to overhaul your Ford Big Block's valvetrain. Inside the box, you'll find the camshaft itself, a set of lifters, valve springs, retainers, valve locks, and valve stem seals. COMP Cams also includes a timing chain set to ensure accurate camshaft phasing, assembly lube for flat tappet applications (though this is a roller cam kit), and decals and instructions to guide you through the installation. This kit is engineered for Ford 429 and 460 engines, fitting a wide range of vehicles from 1968 through 1978, including models like the Ford LTD, Mercury Marquis, and Lincoln Continental.

Achieving the full potential of this camshaft means pairing it with supporting modifications. Expect a rough idle, which is characteristic of aggressive camshaft profiles like this one, but it translates to significant power gains when the engine is properly tuned and the rest of the exhaust and intake systems are up to par. This is a serious upgrade for enthusiasts looking to extract maximum performance from their Ford 429 or 460 engine.