yz 144 athena parts . 2 excellent condition athena ported cyls no wear at all . 2  new style 144 heads one is brand new still in package. one set of power valves and many new gaskets and seals.This set up with thin base gasket to  raise compression and race gas will make almost 40hp and much more torque across entire power  band . the new cylinder heads do not have detachable domes and cured the problem with o ring leakage. Also included are 3 of the oled style heads.This kit only fits 05 and newer bikes . A piston for this is 105.00 and ring is only 11.00. Asking 350.00 or bo call paul 315-3291857

-- Edited by yz125061983 on Wednesday 29th of June 2011 07:43:28 AM

-- Edited by yz125061983 on Wednesday 29th of June 2011 07:44:08 AM