These 14" drop base air cleaners have a unique velocity stack design which drops 1-1/4" below carburetor flange. Each assembly features chrome plated top & bottom plates with 1/4" stud hole (stud not included). Also comes with rubber and steel mounting washers, but we recommend using SuperSeal gaskets 910-11101 for a complete seal.
Fits 5-1/8" carb necks.