Everyone has heard of 3-angle and 5-angle valve jobs. Everyone thinks that one is better than the other but the truth is both have an application. Multi-angle valve jobs (5 angle) provide better low lift air flow. The reason is the angles in the valve job provide more clearance for air flow at low lift. The increase in flow goes away once the valve has moved a significant distance away from the valve seat. This is great for classes where cam lift or duration is limited or for high torque, low lift applications. Once you start running long duration and high lift a 3-angle valve job will provide the same results. In the end a competent valve job is very important but knowing the correct valve job for your application is the most important.
09:47:34 02/11/05
