Re: 1st Time Flathead build-Need advice
The answer I got on your question of matching machine shop bores to oversize pistons is this. If the pistons are of a new build the tolerances are so much better today in manufacturing it is ok to bore the cly before you get the pistons. If you are using old stock you should match the bore to the piston. Either way the person assembling the motor needs to check each fit and ring gap.
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