The Melling MTF-4 is a hydraulic flat tappet camshaft designed for Ford FE 390 and 428 engines. It has an intake lift of 0.485 inches and an exhaust lift of 0.511 inches. The camshaft has an intake duration of 204 degrees at .050" and an exhaust duration of 214 degrees at .050". The lobe separation angle is 112 degrees, and the exhaust center line is 117 degrees. The camshaft is classified as Class 1 and has an approximate power range of 1000-4500 RPM. It weighs 11 pounds and is made of flame-hardened casting with a manganese phosphate coating.