The Wossner forged have bigger clearance than standard as i've had these in my Cosworth
The Wossner have piston slap and when the engine is cold it sounds like a tractor on a hot engine it's ok and my bores were fine after 30000km.
Now changed to Cosworth forged and they're are very quiet and very little oil consumption
Best to meassure the bores, my largest bore was 90,95mm so +0,13 over standard and i used the +0,50 Cosworth forged pistons