Need pistons

I have a yamaha 62t 5 mil stroker motor. I need pistons. I need 82.5 mm. What are the best overall price/durability. It is out of a waveblaster I have bought and have been chasing an air leak. It has msd total loss (old style) b-pipe, twin 44's. Also what are the clearances I should be running or does it differ for different piston mfgs?
 
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I use and strongly suggest ProX pistons, they are just like stock are cheaper and use the Yam clearance. I have my cylinders bored for .0035" - .004 clearance" - never a problem. Regrettably I found the Wiseco pistons requiring more, like maybe .006", because they expand more initially and then depending on how hot they got, may (or not) shrink. I consider excessive clearance to be power robbing.
 
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