LS3 engine specs released today...... 436HP
TECH Regular
Joined: Nov 2005
Posts: 459
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From: Arlington, TN
If the LS3 actually turns out to be a L92 with out AFM lifters and the L76 manifold then LG is going to be ahead of the game with the G6 line of bump sticks.
Hmmm I wonder how long until someone gets ahold of one and then has LG to a cam kit + LT's + Tune to one... and the big question will be can that combo put down 500+ to the wheels repeatedly (ie in more then one car).
Hmmm I wonder how long until someone gets ahold of one and then has LG to a cam kit + LT's + Tune to one... and the big question will be can that combo put down 500+ to the wheels repeatedly (ie in more then one car).
I highly doubt GM is forking out the dough to design a completly new motor. I agree that it is going to be a L92 short block with the L92/L76 heads/intake. The new just means "new" to the Vette. The lighter valves will be a nice addition. I'd still buy the car for it's looks more so than the engine. Do they have a rolling chasis option?
Originally Posted by Chicago Crew UnderBoss
I am dissapointed that an entirly new LS motor for the next generation corvette does not make at least 450 crank horsies! 
Originally Posted by Chicago Crew UnderBoss
I am dissapointed that an entirly new LS motor for the next generation corvette does not make at least 450 crank horsies!
Originally Posted by Chicago Crew UnderBoss
I am dissapointed that an entirly new LS motor for the next generation corvette does not make at least 450 crank horsies!
GM motors never make max HP their first year.
Originally Posted by LSxChevelle
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TECH Regular
Joined: Nov 2001
Posts: 470
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From: Plano, Tx.
Originally Posted by SilverBullet73
Did anybody else notice that the intake doesn't look like the L76? Look at the fuel rail crossover, it's digging into the manifold runner. It also doen't have the big hunch of the L76 runners, seems more rounded. I wonder if GM made an improved intake for the vette?
Here's some mockup cutaway pics of the LS3 from Autoblog, and you can clearly see the shell atop of the L76 intake.
Last edited by Cobraeater; May 12, 2007 at 04:19 AM.
Originally Posted by 11 Bravo
Where's the maf? And what is the black box in front of the passanger side fuel rail cover?
The black box is where the fuses are located..the HP upgrade is to stimulate sales on the 3 year old car...to respond to the guy who wanted a 450 HP coup and convertible..that was not going to happen..Chevy wants a good sized gap between the coup/convertible and the Z06..good biz sense ... think about it.
Joined: Nov 2006
Posts: 707
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From: Right across the river from Huntington, WV
Sweet! It looks to me like the L92 and LS3 are very similar. The good news is my L92 just showed up yesterday! A DOD removal and cam/spring/lifter/pushrod/headgasket/fasteners upgrade, Swap out the truck intake for the L76 car version, and upgrade to the hollow/sodium valves (when available) and I have a cammed LS3!
