Quote:
Originally Posted by GeorgeInNePa
There aren't a whole lot of differences between the L76 and the L99
There's a 12 cubic inch difference. The L99 has the cam phaser as well as AFM. I'm not sure, but I think the L99 gets the sodium filled intake valves like the LS3. The L76 has the same heads as the L99 and the LS3, but gets solid intake valves.
The intakes and throttle bodies are the same. The LS3 gets a forged crank, the L76 is cast, I'm not sure about the L99.
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None of them use a forged crank. Infact the Camaro LS3 isn't the same part# as the 2009 Vette crank. Camaro LS3 is a 12584997, L99 is a 12588612, and the Vette crank is 12597569(also twice the price of the other two?).