Maybe you're right, I'm not 100% on the GEN IV stuff.

 

The L76 is also the RPO for the new Vortecmax motor in the new 07's. As well the aussie car. I think it has the truck L92 intake thought vs the aussie car L76 intake that is floating around on LS1tech. But I could be wrong as it's all pretty new.

The Vortecmax L76 shares heads, intake, and cam (I think with the L92). As well as it as VVT. Not sure if it has the DOD though.


Vortec MAX 6.0L V8 engine features:
* From the family of redesigned Gen IV Vortec V8 engines
* Thundering 367 horsepower @ 5500 rpm
* 375 lb.-ft. of torque @ 4300 rpm
* More horsepower than any other half-ton 4x4 pickup(1)
* More torque than any light-duty engine offered by Ford(1)
* EPA estimated 15 city/19 highway MPG in 2WD and 4x4 models
* Deep inside the combustion chamber of Vortec engines, high-speed air movement generates a better fuel-to-air mixture
* Variable Valve Timing (VVT) technology that optimizes combustion, enhances low-end torque and high-end power, promotes fuel efficiency, and helps lower emissions
* A cast-iron crankshaft with undercut and rolled fillets
* High-flow cast-aluminum cylinder heads that feature a low-friction roller-rocker valvetrain
* Electronic Throttle Control provides outstanding throttle response, greater reliability and improved efficiency
* A faster, smarter Engine Control Module with more memory that better synchronizes the multitude of engine operations that occur every split second
* Hydraulic engine mounts for improved vibration isolation
* A coil-near-plug ignition system for a precise delivery of high-energy spark

 

Is the variable valve timing electronic? Lots of new technology

 

I wonder what the new L92 cyl. heads and L76 intake would do for my LQ9. They are supposed to really flow nice for the low price.

 

What is the CR for the LS2?

Thanks.

 

Good read:

https://www.performancetrucks.net/fo...g+rods+lq4+lq9

 

10.9:1

very nice find.
personally i've never gotten to look at the connecting rods and everything. but like what's mentioned on that thread, the motors are the same but just have different pistons/rods/tune.

 

the rods arent the same one is a Ibeam style while other is more rounded. there are pictures on this site showing differece

 

Will the L92 heads bolt-on the LQ4 without pistion to valve problems? And what about a decent cam?

Thanks.

 

It's computer controlled with a cam phaser moves the cam around to advance and retard timming.