Anybody recognize these 340 pistons?

I forget the Compression distance, it came up as a Keith Black part number for some reason.

They sat pretty far down in the hole. in this picture you can see the #3 at TDC. Somewhere around 3/16" to 1/4" below deck, give or take a bit.



I know someone is going to ask about the Oil Pump Pickup Tube, one of the previous owners ran it in a Dodge Truck (hence the Truck Tube & Oil Pan

The picture up there is old, I tore that engine down over a year ago. Right now the block is inside a crate in my bedroom, and the pistons/rods/cam/lifters/crank/etc are boxed up and labeled/numbered for reassembly.