Just read this over on ls1tech

highlights

500 hp NA 6.3 L Ls1 based engine
3 Valve per cyl heads
7000 rpm readline ( safe to 8000 rpm )



More here ( pg 5 & 6 )

http://www.sae.org/automag/techbrief...1-111-9-26.pdf

This is the motor swap for me !!

 

I can't scroll down to page 5 and 6. I hope this computer or me isn't on the fritz. Nice numbers though, how much? You'd get a pretty penny for your LS1.

 

eeewwwww displacement on demand

seriously youll be doing motor swaps every 5 years if you swapped whenever something new came out. just get some ported heads a small cam and a blower. i highly doubt anything would get in your way.

 

I like to buy a new car every five years. I like the look of the prototype Pontiac Solstice. Power to weight ratio is unreal. It will need one of those LS2's though.

 

then why buy every five years? lease it.

 

Looks pretty cool, but that angle on the exhaust rockers would scare me a bit.

 

They didn't lease firehawks. Custom order car but not a bad idea. The problem with leases is restrictions such as mileage, damage and the buy-out option means you'll pay more. I like the pride of owning and I can sell it whenever I want.

 

Im more interested in seing how the ls1 guys incorperate all the new parts into there setups . What they keep and what they ditch will be very interesting . I would think the cost of factory 383 motors will be very good , lets just pray for a forged internals etc . If it revs safely to 8000 rpm there must be a very light weight rotating assembly included and there is rumors of titanium being used inside . You should be able to get rid of the DOD easily if you so chose , so thats not really an issue . Knowbody can dispute the fact that you lose your reliability and gas mileage when you mod , a 500 hp crate motor would be sweet and 3 valve heads , although more complicated do seem to offer up some more power and efficiency . Swap in a better cam and an meizer street pump , headers etc and you have a very reliable , very fast setup !! I hope the new FAST intake bolts up too These things are going to move

 

that would be sweet if we could bolt those heads on our cars :0

 

I think Id almost go the opposite and take the built 383 block with stage II ls6 heads . Yummie !!

 

Yea, it sounds pretty cool..


I bet there's going to be a bunch of "gotcha's" for current ls1/6 people to use these heads..

If this 500 HP 6.3L gets put in the C6...watch out....