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Genuine Honda block for GX390, and UT2 GX340's. Bored 90 mm.
Electric Start version; can be used on either recoil or electric start engines.
· 408 cc. with stock crank
· 420 cc. with Predator Crank
· 439 cc. with 69 mm. Crank
· 440 cc. with ARC Billet Crank
Note: Side cover not included - Must order separate if needed
