K04 Internals in a K03 Possible?

[derek.straight]

It's my understanding that the K03 and K04 Turbos have identical housing with different impeller/propeller configurations. Is it possible to get a full rebuild kit for a K04 and install the components in a stock K03 housing to build your own K04? has anyone heard of this being done? Thanks

[krew53]

Yes, it can be done. But you would also need to recut the cover inlet for the slightly larger wheel. It is not a direct swap of just internals.

[kneel]

that's what the guys down at GPOPSHOP.com do. I have one. It works good after the second one. F.O.D ws the claim. But all good now.

[widgget]

yeha, the housing needs to be machined out to fit the 5mm larger wheel.

[HeymyAudi]

Yes you do have to machine the internal to fit the bigger wheel...

Here are the differences in the wheels.. I got mine done about 3 months ago... Also if you port your exhaust manifold that helps alot....