Hello Chris
I'm glad someone is restoring these old Ballarat engines.
Yep, my documents show 120cc but horsepower would vary.
They made the standard and a high speed version - h.p.: 1.5 to 2 h.p.
That is good, honest horsepower.
We look forward to updates.
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JACK
p.s. that last photo presents a nice menagerie. Brilliant!
