Feedback Score: 0 reviews
Join Date: Jun 2006
Location: Portersville, PA
This is what I found, any if you guys running tuners?
"300HP. The LQ4 was always rated at 300HP, the LQ9 6.0 in the Escalades, Vmax, and SSs. IIRC the 6.0 LQ4 in some Denali's/H2s were rated at 325 though.
The only change in 05 for the LQ4 in your truck was the LQ4 got the LQ9 rods, but no power changes.
The lq9 had flat top pistons for about a point bump in compression and stronger rods, thats it. The rest of the power came from a different tune. A custom PCM tune can easily bump the LQ4 to LQ9 power levels."
Takes the BS in this thread and tries to use it as fertilizer.