Muffler help

OK, this isn't a Cub question per se, but...I'm hoping to adapt a CC muffler to a Bolens, and I need some measurements.

(I own a CC 123, but it doesn't have the original muffler on it, else I'd measure my own!)

What I need are the measurements for the normal canister muffler that came on the 100 series Cubs with the Kohler single cylinders - like the K301 in my 123, for instance.

I need to know the length & diameter of the muffler, and most importantly I need the diameter of the exhaust pipe to which the muffler clamps.

Thanks in advance for helping a fellow IH owner try to get a lowly Bolens running again!