292 LP Pistons hhave been out of production now for quite a while and not made anymore except the forged design. also you dont want the 1/16 thick rings for a street engine unless your just building a toy. they wont last long on a dauily driver from my sperience. i was lucky to get 20 k on a set before they started getting alot of blow by and oil comsumption. you could however go with just 3 rings and 1/8 thick.
1/16 compression rings are pretty much the norm on performance street engines and newer production engines.1/8 inch rings haven't been seen for 50 years except on heavy duty truck engines.1/16 rings on Venolia pistons in 302 GMC I built 6 years ago.A friend in Florida owns the truck now and the engine is still fine at 50,000 miles.