Who knows where this in-line four-cylinder plan is?

[sition]

Thank you very much. Someone knows where this came from.

 

[ruzzie]

Its the 30cc Sealion it can be found at https://grabcad.com/library/sea-lion-30cc-petrol-engine-1

 

[sition]

Its the 30cc Sealion it can be found at https://grabcad.com/library/sea-lion-30cc-petrol-engine-1

Thank you