OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines Will a 3.5HP Briggs flywheel fit a 3HP?

I pulled the flywheel on an old 3HP Briggs engine today and found a hairline crack running right across one side. It also has a few broken fins. I have some old 3.5HP engines with good flywheels. Can anyone tell me if the flywheel off a 3.5HP will fit a 3HP? If the answer is "no", that will save me the bother of pulling another flywheel. The coils are the same size and the flywheels look to be the same diameter, but I'm wondering if the key and magnets are in the same location? Also, will the same key fit? The shafts look the same, but I wonder if they are tapered on exactly the same angle?