KC Balanced Assembly DIY Turbo kit - 6.6 Duramax (LBZ-LLY)

KC Balanced Assembly DIY Turbo kit - 6.6 Duramax (LBZ-LLY)

Skip to product information
1 of 1

KC Balanced Assembly DIY Turbo kit - 6.6 Duramax (LBZ-LLY)

KC Balanced Assembly DIY Turbo kit - 6.6 Duramax (LBZ-LLY)

3 reviews

SKU 300594

Regular price $ 450.00
Regular price Sale price $ 450.00


Engine Type
360 Rebuild Kit

KC Balanced Assembly

Features & Details:

  • Drop In ready
  • Balanced and ready to install

  • Upgraded 360 thrust bearing

  • Increases air flow
  • Lower EGT's

  • 11 blade single plane compressor wheel


The KC Turbos drop in GTX style billet compressor wheel with extended tips are a great upgrade for someone looking for a little quicker spool and a little more air flow. Our testing has shown that the 11 blade single plane wheels perform better than the stock dual plane design.

The KC Turbos 10 blade Turbine design flows much more and reduces EGT's. Giving you a lot more on the top end performance. This will give you a very loud whistle sound! Some say it sounds like a jet engine. 


* DOES NOT WORK for LMM and LML duramax style turbos. It is your responsibility to verify your turbo has not been updated to the latest Garrett Design. If it has been updated then this upgrade WILL NOT WORK.  Please contact us with any questions

***Please note that there is no warranty on any DIY products***

View full details

Customer Reviews

Based on 3 reviews
Keith Seder
Worth it

I installed this on my LBZ, and it sounds awesome. It also spools great, no additional tuning needed. I wish I would have bought the unison ring at the same time, as I could have used the extra clearance. No instructions but there are some good videos online, not too hard to do.


So no real good reviews on this so I’ll make one. The kit is awesome all around. The 10blade does make a great whistle. The billet compressor wheel with it definitely makes spooling way fast and combined got rid of any turbo lag I had. My egts I watch a lot and dropped them 150 degrees really beating it trying to get them up. Huge improvement. Package came quick packed very well. If your not wanting a bunch of tuning etc this kit is perfect. Really wakes up the turbo and makes it preform how it should. Thanks kc turbo! Awesome product!

Zach Holt
Great choice for Garrett GT3788VA variable vane turbo rebuild.

Bought this set up with the 360 rebuild kit. Showed up quickly, Packaged great, Balanced and marked for simple install.
Spools a faster, sounds great.

Quality product, money well spent.