which engine
Crash,
AW 30? A 2.10 cubic inch eng. equals about 34cc.( I know, this dosen't really answer your question).
O.K. so I was bored and the math looked like something to do.
More than likely a single cylinder, as "boxer engines" are opposed twins or fours, think VW, BMW Motorcyles, or Continental or Lycoming aircraft engines.
Jetts