Thanks. I'll go ahead and order the part and make the mod to the bulkhead. I may also buy the SS parts from McMaster to replace the riser at some point. Will also find a better location for the alternator shut off.Marchem,
That exhaust riser looks to be very close to the original design. My guess is it has been replaced or you have been very lucky with this one.
You also have been lucky with your bulkhead. A lot of C310s have had burning on the bulkhead.
On you alternator project, I would consider a different stop for the breaker. To get wires to where you have the breaker will require crossing the exhaust riser twice with potential for heat and vibration issues. I mounted my alternator service disconnect down low, on the engine base. It's out of the way and out of heat.
Good luck,
Jesse
Rob