27057-30 OLD 1118-30 'PEEK' KNUCKLEHEAD FLATHEAD 1-9/16” ID INTAKE SEALS

These are the seals you have heard about, that can eliminate intake leaks, now at an affordable price, PEEK (polyetheretherketone) is a linear aromatic semi-crystalline thermoplastic developed in the late 1960’s. It is widely regarded as the highest performance material capable of being processed on conventional thermoplastic equipment.PEEK has a melting point of 650°F (343°C) with a continuous use temperature of 500°F. It has outstanding creep resistance for an engineering thermoplastic material and can sustain large stresses over a useful service life without significant time induced extrusion.SOLD AS SET OF 2H-D 1,1-9/16” ID, FITS1930-48 74”& 80” Flathead 1936-39 61” OHV H-D # 27057-30