COMP Cams Camshaft A8 XE264HR-10

COMP Cams is well-known for its performance camshafts, and the Xtreme Energy line is a popular choice for those looking to get more out of their engine without sacrificing everyday usability. This XE264HR-10 camshaft is specifically designed for AMC V8 engines, including the 290, 304, 343, 360, 390, and 401 cubic inch displacements. It's a great option if you're building a 4x4 or offroad vehicle and want more low-end grunt and better throttle response right off idle.

The Xtreme Energy profile features a quicker valve opening and more area under the lift curve compared to older camshaft designs. This translates to noticeable gains in both torque and horsepower. Importantly, COMP Cams designed this grind to maintain adequate vacuum for essential accessories like power brakes and other vacuum-dependent systems, so you don't lose creature comforts. While it works well in carbureted setups, you'll see the best performance gains when paired with aftermarket intake manifolds, lower gear ratios, headers, and a free-flowing exhaust system.

This camshaft is a hydraulic roller type, which generally offers less friction and more precise valve control than flat tappet designs. You can expect a mild but noticeable idle with this camshaft, indicating it's working harder than stock. It fits a wide range of American Motors and Jeep vehicles from the late 1960s through the early 1990s, including models like the Jeep CJ7, Jeep Cherokee, and various AMC sedans and muscle cars.