The Enginetech High Performance Engine Camshaft Dr. Bumpstick (Part Number: DR.123815) is designed for serious engine builders seeking reliable power and durability. Crafted from cast iron or billet material, this camshaft features a hydraulic lifter type that ensures smooth operation and longevity. It offers an exhaust valve lift of .368 inches and a duration at .050 inch lift of 252 degrees, providing a strong balance of performance and efficiency. The intake side boasts a duration of 238 degrees at .050 inch lift, optimizing airflow for improved engine response and power output. With a cam type rated as Type 3, this camshaft is suitable for a range of high-performance applications while maintaining factory rocker arm ratio compatibility with an exhaust and intake valve lift of .625 inches. This makes it an excellent choice for engine rebuilders looking to enhance their engine's performance without compromising reliability.