Dec 15, 2025 · Lb7 Oil Level Switch - Struggling with Pin 70 2002holding Mar 3, 2025 Replies 3 Views 376 Mar 4, 2025

Sep 15, 2024 · Recently bought a wrecked lb7 for dirt cheap from a friend. Pulled the motor, stripped it to the block and sent it to the machine shop to be hot tanked, honed and new cam …

Aug 17, 2024 · LB7: Looking for a stock and a tow tune. strokerz Nov 21, 2019 Replies 10 Views 3K Nov 26, 2019

Feb 5, 2021 · Thinking about long-term plans for my truck (2003 CCSB 4x4 LB7). Let's say the goal is 600 rwhp (or enough to run 7.99 in full street trim in a 7000 pound truck) and to be as …

Oct 17, 2011 · What year is your truck? Sounds like a LB7, they have the most problems with fuel in oil. If it is a LB7 more likey it's injectors. I have never heard of the cp3 putting fuel in the …

Aug 28, 2013 · Anyone know at what point my stock cp3 maxes out for hp? I hear stock injectors will do up to 550-600hp but will the cp3 keep up with a lift pump? Im just putting everything in …

Jul 3, 2015 · Been fighting a oil dilution problem for a while now and it keeps getting harder to find the leak.No return or injector leaks visible with covers off and idling at 160mpa so I added dye …

Oct 12, 2012 · Does anyone know what the fuel rail pressure should be at idle?

Sep 13, 2015 · I am relatively mechanical and the head gaskets are blown in my LB7. I keep hearing all these horror stories on changing head gaskets on a duramax. I have never done …

Jun 27, 2008 · Then the LB7 intake bridge is one piece that comes all the way out to the intercooler tube and it will bolt to LLY intake runners. So you add the LB7 up-pipe, intake …