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Product Description
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.
***Use 28oz of oil in most applications***
Will Not work on 460 10 bolt blocks.
Will Not work with Stud Kit. Must use bolts in kit
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billet side cover for gx390
Fit is perfect and uses 4 location dowel pins instead of just the 2 honda uses. The 2 extra pin holes in the block are undersized at least mine were.I just opened them up with an 8mm drill and pins pressed right in. Really like the 2 bearings on pto side of crank and ball bearing for cam. If you want an excellent upgrade get it, the price more than fair
