6.0 swap?

[01hoe]

So the 5.3 in my hoe is knocking so it's time for a 6.0. I have been doing some research on the swap and want to confirm that I am understanding this correctly. The 6.0 came with 2 different cranks.... 99-01 with a thicker flange and the the newer with a thinner flange.

If I am reading everything correctly the new one with the thinker flange is an aluminum head engine and that is the one that will bolt up to my 4L60E trans... Correct?

 

[livingez_123]

All of the 6.0's were cast block and alum heads. there are 2 different 6.0 engines, one is a LQ4 and the other is a LQ9. any of these engines will bolt up to your 4L60E. try and get the ECM with the 6.0, if not you will need to have yours flashed to run properly, it will start and run with the 5.3 ECM just not up to performance.

 

[Z-56 Hoe]

Yes there are two different sized flanges I ran into that problem but I have a 4L80 there is a write up here some where about the LS engine specs and differences ill look for it. I had to get a spacer from GM. It wasn't bad.


It's right above us titled everything you wanted to know LQ4/LQ9! It's a sticky!