I guess I have an LQ4 then lol, which is just fine. And yes i definitely wasted my money with the diablo tune. If I were to to it again I would go with the black bear custom. I'll most likely use them this time around unless I put it on a chassis dyno. I'll still rebuild this one I picked up because it most likely needs it anyway

 

I dunno what province you are in but if its this one.... just get the email tune. Anywhere else I can't say. If you are rebuilding that 6 liter you could just install LQ9 flat tops and thus have an LQ9. Decisions to make when the time comes.

 

Thanks for all the input guys. Definitely gave me a few options to consider.

 

4 and half years later, what did you do and how has it been?

 

Bore it to 4.065. LS3 stock pistons are cheap

edit: NM old post