<p>P - S40A V2 R/C Engine <br> <br> Displacement: 6.46cc <br> Bore: 20.66mm <br> Stroke: 19.28mm <br> RPM range: 2,000-17,500(r.p.m) <br> Output: 1.14/16,500(kw/r.p.m) <br> Weight: 412g <br> Suitable Prop:9x8-10x6</p>