Help identify this engine

[duckBoy]

Can anyone help me identify this engine or give me pointers where to look for some ID tag areas?

Sorry that I put them on PB, I know it sucks.

http://s16.photobucket.com/albums/b22/alfaracer26/BMW%20Engine/

[Wishno87]

Looks like an M52 to me.

[duckBoy]

Thats what I was leaning towards.
Is there another way to tell them apart, m50, m52, other then the intake manifold?

[Wishno87]

Well the metal coolent pipe is an OBD2 thing.

[duckBoy]

Interesting. Looks like my friend might be selling a m52 then.

Thanks wishno

[MR 325]

The block and/or head should also have VIN stickers on them. That's an easy way to tell.

[scottinAZ]

The block and/or head should also have VIN stickers on them. That's an easy way to tell.

yep, should be a VIN tag on the back of the head (if it wasnt worn off)

Also codes should be stamped into a pad behind the drivers motor mount. There should be enough info on here to decipher the info found there.