You could run Wiseco forged pistons at 0.006" clearance. Here is a blurb copied from their website....

Question: What kind of piston-to-wall clearance can I run?

Answer: The factors that affect this are cylinder wall thickness, whether the block is filled, the overall compression height of the piston, piston material and thickness, and whether a marine engine is to see fresh-water cooling. Most small blocks get 0.004" piston to wall clearance and most big blocks get 0.005" due to the use of our 2618 high-strength alloy. For heavy blower and nitrous applications, Wiseco recommends adding .001 to the standard clearance. Special note: Clearance numbers are obtained from measuring the largest diameter of the piston, typically at the bottom of the skirt. All measurements should be taken 90 degrees from the pin centerline.

The question is, which costs less, forged pistons or cutting the bore to +0.060" and some lesser cost kind of pistons.