Need help identifying pistons

[d55dave]

Can anyone help me ID these? They are for sale locally, are a partial set and are cheap. Honestly I am kind of leery about buying them and am starting to think I should just buy a new set.....

They are supposed to be standard bore 440 pistons. Can anyone tell if they are cast or forged? Hypereutectic? Modified (tops milled?), model or part number?

Clearly they are kbs..... any and all help is appreciated, as always.

 

[70aarcuda]

Keith Black KB Performance Pistons KB251

Keith Black KB Performance Pistons KB251-STD

 

[d55dave]

Huh. And there they are. I spent some time looking but didn't think to search for kb251. Clearly they have been milled. Think I will pass.

United Engine Machine KB251.040: Chrysler 450ci Hypereutectic Pistons Step Dome Top .260" | JEGS

 

[Krooser]

They will work depending on the heads you use