New LS2 2005 Corvette specs from Feb 03 Motor Trend

4.00 bore
3.62 stroke
5.970 L
346.9 CI

10.9 Compression

400 hp @ 6,000
400 tq @ 4,400

6,500 rpm shutoff

 

Yep, I can't wait until those aluminum 4.00" bore blocks hit the market. That, with the cheap Eagle crank kits, will make us some 408ci engines for less than $2500 total

Tony

 

Wouldn't a 4.00x3.62 motor be bigger than 346.9 CI?

 

uhh,

a 3.46" stroke and a 4" bore would make it a 6L and 364 CID. slippy fingers maybe??

still VERY cool, but how accurate is this information?

 

i read this info in an artical a few weeks ago
ya all corvettes with ahve 6L motors and in a few years when the Z06 comes out again it will have a 6.6L motor and 3 valves per cylinder
and the repes at gm said that these will bolt right up to all earlier ls1 motors

 

I cant believe the compression!

 

the new vettes will be monsters!!!

 

I wonder what over bore the new 4.0 aluminum blocks will be able to take. Seems like GM might think ahead and use sleeves that can take up to 4.125 the later 427 that's rumored.

 

Compression seems kinda high, anybody know if these are reverse flow cooled?

 

i just confirmed the displacement via out parts catalog here at the dealership. 4" bore aluminum blocks

 

Was that in english? Seriously that LS2 will be a sick engine.

 

Now can you confirm ship dates and pricing? I might just wait for one of those to come out..

 

03-06 are the production dates. might they allready be on the trucks in the new C6's?

anyone know the rpo code for that 3 valve engine?

 

the 3 valve head had already bin made but its still in testing as of yet i think

 

12-13 C6 RPO CODES

AAB Memory Package
AG2 Seat adjuster, power, front passenger 6-way
AJ7 Air bags, frontal and side impact, driver and front passenger
AK5 Air bags, dual-stage, frontal
AQ9 Seats, front Sport bucket
AR9 Seats, front bucket
C2L Roof Package
CC3 Roof panel, removable
CF7 Roof panel, removable, 1-piece, body-color
CJ2 Air conditioning, dual-zone, automatic
CM7 Convertible top, power folding
D42 Luggage shade
DD0 Mirrors, inside rearview with compass and driver outside rearview
DL8 Mirrors, outside rearview, power, heated, body-color
F55 Magnetic Selective Ride Control
FE1 Suspension, 4-wheel independent
FE9 Emissions, Federal requirements
G90 Axle, 3.15 performance ratio
GU2 Axle, 2.73 ratio
GU6 Axle, 3.42 ratio
K11 Air filtration, includes pollen filter
KA1 Seats, heated
LS2 Engine, 6.0L LS2 V8 SFI
MN6 Transmission, 6-speed manual
MX0 Transmission, 4-speed automatic
N37 Steering column, power telescopic
NB8 Emissions override, California, Massachusetts, New York or Vermont
NC7 Emissions override, Federal
NE1 Emissions, Maine, Massachusetts, New York or Vermont state requirements
NK4 Steering wheel, leather-wrapped
QG6 Wheels, 5-spoke aluminum
QG7 Wheels, polished
R8C Corvette Museum Delivery
U2K Sound system feature, XM Satellite Radio
U3U Sound system with Navigation, ETR AM/FM stereo with CD player and MP3 playback
U52 Instrumentation, analog
UE1 OnStar
UG1 Homelink transmitter,
US8 Sound system, ETR AM/FM stereo with CD player and MP3 playback
US9 Sound system, ETR AM/FM stereo with 6-disc
UV6 Head-Up Display
VK3 License plate bracket, front
YF5 Emissions, California state requirements
Z51 Performance Handling Package

 

Sounds like the C6 will have some nice goodies in it!

 

There is some discussion that the heads may be swappable as you mention, but there seems to be some thought the LS2 offers some sort of variable valve timing. This would be done in the block and would most likely mean many sensors and such are relocated within the block, possibly meaning the new 6.0L LS2 blocks cannot swap for earlier LS1/LS6 blocks. Guess we will know a lot more on Jan 4th.

Todd

 

Guys I honestly do not think this 3 valve stuff is going to be a revolution. This technology has been around a long time, and I dont think the gains will be as significant as you might think. I am willing to bet there will not be more than 20 CFM between a good stage 2 LS6 head and a good version of the new 3V setup. For the extra valvetrain mass and the extra parts the 3V heads alone are not going to be worth the change. If they couple it to VVT it might be a differnt story. All IMHO.