droppedchev

iTrader: (5)

Is a s400-75 t6 to small for a 408 or can I run that for now

slowlsx

iTrader: (26)

If you already got it why not just run it see what it can do? It's a simple swap. But depending on which 475 you have mine will handl 1000hp so I would say yours should do well. If not get the s480 good for 1300hp

droppedchev

iTrader: (5)

It's suppose to handle 1000 hp

smokeshow

iTrader: (16)

Never know til you try. What sort of boost do you want to run?

Sierra1320

iTrader: (1)

What ratio A/R housing is on it? It should be fine for low to moderate boost levels. You can always upgrade in the future.

smokeshow

iTrader: (16)

Don't go too low...keep in mind these are commercial diesel turbos, designed for high boost applications.

hellbents10

iTrader: (10)

If it has a 1.32 a/r you will be fine to 900hp.

droppedchev

iTrader: (5)

It's a 1.10 and as of right now I'm running 14psi on my 6.0 but it didn't like it that much and I think I messed up a piston so that's why it's going to a forged 408 and it will be at 14 psi still for now till I wanna make more power

smokeshow

iTrader: (16)

What happened to the 6.0?

droppedchev

iTrader: (5)

Don't know yet I gotta rip it out