Kibblewhite Valve Guide - 20-20HSM For Harley Motorcycles 1948-1979 Product Type_Electrical cylinder head temperature sensor and

cylinder head temperature sensor and an exclusive knock sensor that detects detonation or knock while the engine runs

An easy upgrade when changing tappets or cams

Features Big Sucker™ "hidden breather" technology and a forward facing 65° intake design that produces the highest air flow performance

Mounts to frame just under the front of the seat

Kibblewhite Valve Guide - 20-20HSM For Harley Motorcycles 1948-1979 Product Type_Electrical cylinder head temperature sensor andFeatures Precision machined guides Manganese bronze guide material is softer than nickel aluminum bronze valve guides Excellent heat conductivity which promotes long valve life Guides can be easily reamed with a battery operated or electric drill and finished with a high quality ball hone Eliminates the need for expensive honing equipment that would be required for nickel bronze valve guides Machined to accept OEM and aftermarket seals Made in the U.