Xtreme Energy™ Cam

New cam lobe designs allow maximum performance for Evolution engines. Give great throttle response and mid-range with excellent high-rpm power. Fast opening and closing gives better airflow with the lift and duration used. Xtreme Energy cams require valve springs designed for high-lift cams. All cams made from SAE 6150 bearing-quality steel for durability and include the cam gear. Made in the U.S.A..