Predator Stock Flywheels

Will a Hemi Stock Flywheel fit a Non-Hemi? The reason I ask, I bought a Non-Hemi engine with a ARC Billet Flywheel, the track I run at stated the flywheel must be stock. I'm trying to find one and can only find one from a Hemi. If anyone has the stock one and they are willing to sell it to me and ship it can you let me know and help me out. I've only been in Kart racing for 1 month and I have two boys racing age 14 and 12.