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Omega Piston Rings

Posted: Sat Apr 30, 2016 11:44 am
by Adam43
In rebuilding a B-series engine (1950cc) I needed a new set of Omega Piston Rings (for 83.5mm Omega pistons, #3649). I ordered these from www.shengineering.co.uk. However it turns out the oil control rings are too big - I understand that they changed from 3mm to 4mm at some point and mine need the older 3mm ring. All the other rings in the set I bought are OK.
Contacting Omega hasn't helped.

Does anyone have any idea if there may be any places that stock the older rings?