The new Longstroke piston survives Archie and Kenny’s test and torture rig

I couldn’t resist sharing this video of the new forged Sunbeam Longstroke piston undergoing its first trial run. Thanks go to Archie Beggs and Kenny Crawford who kindly put the piston into an engine they are preparing for a friend and then demonstrated it on their high-precision, custom-built Sunbeam engine test rig. The eagle-eyed may notice the lack of a cooling fan but Kenny had to fit it back in the bathroom as the condensation was causing problems.