Singer Chamois Sport engine number 610

The crank was re-ground to an exact size by the local Ferrari agents,Viglietti Motors,this means they actually take the block and new bearing shells,fit the shells and then check what the crank grind should be,nice to have such good service.

Thats the cars production number,not the engine number,all new parts excepting the pistons were fitted,so the bore is still the genuine 875cc it started with,why move from standard when we can continue with the original Sport piston set,we fitted new rings of course.