My dad has this turbo sitting around in his barn/work shop. I can't find anything useful on the body of the turbo itself but on the box it came in there is a label that says "Turbo T04B37"...its a garrett turbo and both the compressor and turbine side are labled "60 A/R". He said it was ordered to go onto a big diesel truck....anyone have any idea of what kind of power this thing could make on an ls1? And while I'm posting...what does "60 A/R" mean? Thanks.