What's the closest I can get to 30 size for marine glow engines? What about 40 size?
What's the closest I can get to 30 size (5cc / 0.3 cubic inch) when it comes to a good quality marine (water-cooled) 2-stroke glow engine that is currently or at least was recently manufactured? Also, what's the closest I can get to 40 size (6.7cc / 0.4 cubic inch)? Who makes any such engines? Thanks.