The article identified below appeared in The July-August issue of Y-Block Magazine in 2014.
It is written by Ted Eaton and documents what might be done in re-purposing an original 272 for significant performance output.
While the write-up is more than merely boring the cylinders to 292 specs, it illustrates what else could be employed to increase the engine's original performance, horsepower & torque output. My understanding is that 272 pistons are becoming scarce while 292 pistons are still readily available.
Keep in mind that Ted lays out a buffet of improvements that you could employ.
Boring the cylinders, using an appropriate performance camshaft, using stock 1.54:1 rocker arms, a set of G or 113 heads, zero decking the block for the pistons, changing to a stock 'B' intake manifold, using a later stock combination centrifugal & vacuum advance distributor, AND having the rotating assembly balanced will t-r-a-n-s-f-o-r-m your engine's performance without sacrificing drive-ability, reliability, or your wallet.
Here's a link to the article mentioned above on Ted's web site...
http://www.eatonbalancing.com/blog/2015/06/05/hopping-up-the-272/Not to confuse the situation, but for my purposes I'm leaning toward using the cam Ted used in building an engine for Karol Miller in 2015. I think that the cam's 110 degree LSA will serve me better for city stop-and-go and lower rpm throttle response
Here's a link to Ted's article on building the engine for Karol's '56 Ford...
http://www.eatonbalancing.com/blog/2015/05/01/unported-iron-heads-can-still-make-over-a-hp-to-the-cubic-inch/Food for thought!
NoShortcuts
a.k.a. Charlie Brown
near Syracuse, New York