<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>