OK so I have the 900 daytona engine with a holed piston, and I have a set of 750 pistons
. And I am now considering wrestling it all onto my workbench to build my "special" engine for my S3 so I'm perusing the World of Triumph website checking out part numbers and looking at a new set of rings when I notice the centre piston has a different part number
(closer tolerence I believe). I have had a quick look at the pistons and can see nothing obvious.
Soooooooooooooo how do I identify the centre piston, any ideas?