AMC 290-401 Hydraulic Cam - 270H

The AMC 290-401 Hydraulic Cam - 270H from COMP CAMS is a precision-engineered hydraulic roller camshaft designed for classic AMC V8 engines ranging from 290 to 401 cubic inches. This cam is built for enthusiasts and professional mechanics seeking reliable, street-friendly performance without sacrificing durability or engine longevity. The hydraulic design eliminates the need for solid lifter conversions, making installation straightforward on stock or mildly modified engine blocks while maintaining OEM-level reliability.

The 270H designation indicates a moderate lift and duration profile optimized for mid-range torque delivery and throttle response across the RPM band. Hydraulic lifters automatically adjust for valve train clearance as engine temperature fluctuates, eliminating the tedious tuning and potential galling issues common with solid lifter systems. COMP CAMS' manufacturing process ensures tight tolerances on lobe profiles, bearing surfaces, and the camshaft core to withstand sustained operation under boost or high-revving conditions. The robust construction at 10.5 lbs reflects the quality materials and precision grinding required for consistent valve actuation across thousands of operating cycles.

This camshaft is ideal for vintage Javelin, Gremlin, Rebel, and Ambassador owners who want increased power without frame-off restorations or complete engine rebuilds. Installation requires proper valvetrain geometry verification, timing chain inspection, and lifter pre-oiling to ensure longevity. The 24.75-inch overall length fits standard AMC V8 engine blocks; verify your specific displacement and intake/exhaust valve configuration before ordering. Pairing this cam with quality pushrods, rocker arms, and a compatible ignition tune will unlock responsive performance while maintaining the drivability expected from hydraulic designs.