Not mine, heavy but a good deal at 250 shipped if on a budget and I think this number is a ihra? approved 340 piston.

https://www.ebay.com/itm/Set-of-8-Pistons-for-340-Chrysler-Engine-2332P-040/273013813461?hash=item3f90e430d5:g:BVoAAOSwXOhaUO4q&vxp=mtr