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piston to cylinder wall clearance is supposed to be around .001 to .0015 inches; you have to use inside and outside micrometers to check it......"feeling" the clearance just does not _______ make the grade.....and I hope you have the volvo service manual on reconditioning that engine.....it will give you the specs and illustrate how to check the clearances.......and I also hope the machine shop had the new pistons so that they could properly finish-hone the cylinders to end up with the correct piston to cylinder clearance........if the piston to cyl clearance is more than .003 inches, you will experience piston slap, esp when cold........volvo designed those motors to have tight piston to cylinder wall clearances......for longevity as well as power......if you put it together loose, you are wasting your time and money.......I spend at least 20 hours fitting and assembling a short block, and that is just for a "stocker"-----a volvo turbo motor is NOT a "stocker"......it's gotta be tight, and it's gotta be right.....anything less is crap with a capital "S".........taking on a B23FT for your first rebuild is going to be a challenge; there aren't very many people I would trust to do a stock motor like a small block chevy, much less a high performance motor like a volvo turbo motor......that's why I build my own......good luck, cuz you're gonna need lots of it
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