Speedmaster PCE281.2103 Hydraulic Roller Assy Cyl Heads 254cc 64cc for Ford 351

Ford 351 Cleveland 4V 254cc 64cc Hydraulic Roller Assembled Cylinder Heads The Speedmaster Ford Cleveland cast irone heads are a perfect upgrade for both 2 and 4 barrel engines. Not only do you get more performance out of the box than OEM heads, but they retain the stock look. As another benefit, you can run higher compression with these heads before the onset of power robbing detonation. Assembled with the finest premium components to provide your engine with optimal airflow for maximum engine performance Improved power throughout the rpm range for greater throttle response and top-end horsepower