RWA 1413R #3A Mechanical Roller Cam, .584″ lift, .260″ duration @.050″. This cam works great on mid to large size tracks were the RPM’s are in the 4800 to 7200 range. This cam requires .100″ longer valves, use our RWA 1495 and RWA 1497 oversized valves. If using stock length valves, then a .100″ lash cap is required, use our RWA 1413-23 lash caps. The use or our RWA 1472 valve springs and RWA 1476 B steel retainers are required. The cylinder head needs to be converted to mechanical lash adjusters, use our RWA 1489 mechanical lash adjuster set.