The complete surface has been ground to remove all the imperfections of standard rough-milled material, which also removes notch sensitivityA radius is ground on the last thread to reduce the...
Solid Viton™ and solid PTFE seals utilize choker spring and lower tension spring to maintain optimal seal under high heat/stress conditionsFor use with stock intake and exhaust valve guidesMade in...
Precision-machined from cast ironCompatible with no-lead fuel and accept any type of valve-stem materialMade in the U.S.A. Harley-Davidson -- Breakout FXSB -- (2017, 2015, 2016, 2013, 2014);...
Precision-machined from cast ironCompatible with no-lead fuel and accept any type of valve-stem materialMade in the U.S.A. Harley-Davidson -- CVO Electra Glide Ultra Limited FLHTKSE -- (2014, 2016,...