Anybody using one of these Old Skidoo 250 Type 247 Singles? I see Steve Beatty from Airscrew Selling them on eBay. This used one was on Facebook Marketplace. Stock their [email protected] (69mm x 66mm) 246.8cc! The 246 Blizzard was 29hp with a Tuned Pipe. With just a Cylinder & Head Change you can make a 292, 299/300, and the 318/320 is (76mm x 70mm) 317.6cc, and the 335 ([email protected]) / 340 TNT ([email protected]) was both (78mm x 70mm) 334.6cc, the 340 Blizzard was (78.5mm x 70mm) 338.9cc (36hp).