Introducing FREE FREIGHT OVER FORTY! Orders over $40 will be eligible for FREE GROUND FREIGHT in the contiguous 48 states.*
*Some restrictions apply. See the shipping policies page for details.
New-style breather is not dependent on the rotation of the crankshaft to make it open and close; instead, reeds open when the pressure in the crankcase becomes greater than the pressure in the cam chest and close when the pressure in the cam chest is equal to or greater than the pressure in the crankcase
By opening and closing on demand, the reed valves automatically compensate for the lag time associated with accelerating the mass of air as it is forced out of the crankcase, increasing performance and stopping high-rpm oil carryover in engines with marginal piston ring seal
Installation is fast and simple; no aligning timing marks, and no rotating parts
Made in the U.S.A.
NOTE: Breather reed valve can be used in Shovelhead engines with open primary drives or sealed primary chain cases that do not require external lubrication or oil scavenging.