Big Block GX390 ARC Billet Side Cover for 7 Bolt Blocks - 6059

Honda GX390/420 billet side cover. Machined from 6061-T6 aircraft grade aluminum features dual crank bearings and cam bearing for extra support. Uses all 4 dowel pens in the block for extra block support. A must for all modified and stroker applications. Includes all hardware for installation. Not designed to be used with counter balance or electric starter. Chain guard mounting holes thread size M8X1.25mm. ***Use 28oz of oil in most applications***  Will Not work on 460 10 bolt blocks. See P/N 6060 for those. Will Not work with Stud Kit. Must use bolts in kit.