Help with Piston Identification

[87chrisss]

Need some help have searched a few days but still cant find anything on these pistons anyone got an idea? I cant tell if they are cast, hyper? Or what brand?

 

[Squid4life]

Looks like cast NA to me...

 

[87chrisss]

Looks very similar to stock turbo pistons based on Gnttype see link
http://www.gnttype.org/techarea/pictureguides/pistonguide/38turbopiston.html

NA pistons ? What makes you think these are NA pistons opposed to turbo pistons?

I know all stock 109 pistons turbo or NA are the same thing no difference. Stock pistons look very similar to this but these have 40 and p425 stamped and and the arrow so they arent stockers? Are they?

 

[earlbrown]

Looks like a bone stock 3.8 piston to me.

bottom right is stock 3.8 piston out of my personal car

 

[87chrisss]

Indeed a stock turbo piston thanks,

 

[iraceitall]

Yep, but .040 over. I measured. They will work great for me though!

 

[iraceitall]

They are cast units from Badger, .040 over.