What turbo is this?

[sleepy350]

Hey guys my neighbor gave me this turbo off of a custom setup he had on a Datsun 510 he bought. Can anybody tell me what it is?

Heres some pics:




The exhaust housing has Aireasearch on it along with what looks like a ".63" on the inside of the housing where the manifold would bolt up. The center sections has garrett on it. And the compressor housing seems to have been polished at one point so all markings but "m10" on the back have been removed.

Any help would be great guys. Thanks in advance.

[JTDay]

looks like an older garrett t3/t4 off a diesel tracktor or something of the sort. garrett and aireasearch were at once the same.

[einstein57]

Looks like a T4 turbo to me. I'd play around with different exhaust housings if you have access to them. But free is free.