Stock 325 hp turbos???

[Fireman1501]

Are all the 325 stock turbos the same? I have an 05 stock and and 06 stock and the 05 has holset 1 on the compressor housing and the 06 has holset 3 on the the compressor housing. Anyone ran across this?

 

[Charles]

Are all the 325 stock turbos the same? I have an 05 stock and and 06 stock and the 05 has holset 1 on the compressor housing and the 06 has holset 3 on the the compressor housing. Anyone ran across this?

Did you check inducer dia for each? That's the best "at a glance" check for compressor capability there is.

 

[Rollin Coal]

03-04 is an he341 04.5- the last 5.9 is an he351

 

[Fireman1501]

I was told the 325hp turbos where 60/60/9 but the compressor housing casting numbers just caught my eye. Did not know if anyone has reearched this.