ARC 6603-GX3 Honda GX390 Flywheel, 3 HP Diam. Finless

ARC Flywheel for GX390 features: - SFI Certified - 2.85 Pounds - 3hp Diameter - 5 3/4" (Stock Flywheel size for the GX390 is 7 3/4") - Finless - ARC's signature indexed adjustable hub which allows easy timing / ignition changes - Timing adjustments from Stock (25deg.) to 39deg. BTDC using the stock crank key - Powerful Earth magnets * * Quick Power * * Drag Racing * * Use ARC 5980 coil bracket for non-UT2 coils