Cylinder sleeve. 3-5/16" bore

36-47 61" (1000cc) E, EL Knucklehead (NU)

3-5/16" (3.312") stock bore. Cylinder liners are used to save stock cylinders. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It is of importance that a knowledgeable mechanic will install & make adjustments as required.