6.2 ls3 GM performance crate engine

[petethepug]

That was a great post to add. If you’ve got the LS motor, whichever one, simply make sure it has a truck cam and you’re all set.

The 3/4 & 1T 6.0L L96 truck motor is an excellent drop in solution. It has no AFM, alum heads, iron block and runs reg gas. Simply drop in and tune out trucks AFM. Add a cam and you’re good for 400+ hp/tq

 

[Charlie207]

It could be made to work but an LS3 isn't really the best powerband for a big heavy truck. The VVT makes a huge difference for power down low where a truck needs it the most.

The VVT probably isn't making that much of a difference over the non-VVT engine equivalent.

It's been discussed here before, but VVT on our engines simply can't do much with a single cam controlling both the intake and exhaust valves, compared to the huge benefits VVT can provide to DOHC engines.

It's all for CAFE and NHV standards anyways.

 

[91RS]

It makes a massive difference. Go drive a 6.0L GMT-800 Denali or Escalade and then hop into a GMT-900 with the VVT 6.2L and there is a huge difference in the bottom end. Or, go look at dyno graphs of the power curve. Regardless, the cam in an LS3 is just not ideal for a truck. Just like an LS9 cam isn’t ideal for a CTS-V that weighs 1000 lbs. more. Can it work? Sure. But could it be better? Absolutely. Why spend all that money and do all the work for it to not be as good as it can be?

 

[mikez71]

To be fair, he did say non-VVT engine equivalent.
And you are comparing a 6.0 to a 6.2, and possibly 4 speed vs 6 speed.

But I'm all for making it better, especially low end torque, and it doesn't sound like the VVT system itself has any real issues?
(Only issue when going with a bigger lift cam?)

I haven't driven either