QUOTE(Optimusglen @ Aug 10 2016, 10:29 AM)

What does KB stand for?
Looks as if my pistons are NPR, and European Motor works sells a set of 2 x 2 x 5 marked as NPR. Couldn't find a set that matches that on Hastings website but I didn't call so maybe they can set me up.
having never done rings, I assume that 4.75 in a 5mm groove is a no-no.
That's why I put that up there, everyone who stated Hastings assumed you had KB's, Keith Black pistons.
I knew you had either measured wrong or had a different piston. And yes a 4.75mm ring in a 5mm groove would be bad.
Deves makes a 2 x 2 x 5mm set, you can get them through aircooled.net
http://vwparts.aircooled.net/DEVES-Piston-...es-96-2-2-5.htm