Does anyone recognize this block?
 

Found this on nasioc, really interested in part number for the block halves if someone has em by some miracle.

Looks like a stock 92mm bore cylinder in Ej25 casing for extra thickness.

Attachment 74388

Yep from the JDM sti hatch, same as the EJ25 but with and extra 7mm of liner thickness due to being 92mm bores rather than 99mm :)

Do you by any chance have a part number ?
Although from your description, i'm under the impression that you mean it's a W20C engine.

Here is a comparison of W20C with a S20C in one picture, however, even though the W20C has thicker liners than the S20C, they are still thinner than the one in the picture above, since W20C uses EJ20 Casing.

Attachment 74387

b25c 701 I would imagine is the part identification for the block

A part number would be something along these lines : 10103AB470