Honda GX390/420 billet sidecover. 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. Chain guard mounting holes thread size M8X1.25mm.
***Use 28oz of oil in most applications***
Will Not work on 460 ten bolt blocks.
Will Not work with Stud Kit. Must use bolts in kit
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