hi can someone help me id this turbo. i know the exhaust is a 63 and it is a garrett turbo but not sure anything else. here are some pics of it. thanks

 

It's a T3/TO4S turbo, can't tell you anything else till you pull off the compressor cover and measure the wheel.

 

how do u measure the wheel

 

Undo the bolts on the back of the compressor cover, and pull it off. Use a pair of calipers, perferably digital calipers, to measure the minor and major of the wheels.

 

bump

 

What's there to bump for? The numbers are all generic, nobody has a magic eye so we can't tell you how big the wheel is from a picture. Measure the wheel(s) or we can't tell you anything.

 

You need to see the whole compressor wheel to figure out the trim(size). Once it's out....measure the diameter of the whole wheel (exducer), then measure the diameter of the smaller part of the wheel (inducer), then plug into formula below and you got your trim:

Trim = (Inducer/Exducer) ^2 * 100

DAN