got this with ITR intake manifold that i bought. from what engine is this ?

 

What does that code stamp read? It's kind of blurry.

 

easy measure with a ruler what the mm is on the TB i believe the gsr is 60 mm, but i dont think its gsr cause there is no map sensor on the top. look up the mm for tb

it looks like an old b16 of delsol perhaps i think those are the ones with re-positioned map sensors

 

it looks like its bored out. inner mm is 60 and outer is 65mm
i will check for stamps today