Genuine Honda Block for GX390 and UT2 GX340s - Bored 90mm

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 69mm crank

· 440 cc. with ARC Billet crank

*Note: Side cover not included. Must order separately if needed.