Per Autoweek:

Three- Valve Power Boost
If you think car companies have been spending all their engineering talent developing
hydrogen-powered fuel cells or dilithium-crystal hybrids, think again. General Motors
unveiled a 6.3-liter V8 with three overhead valves per cylinder (one exhaust, two
intakes) that makes 470 hp at 6700 rpm and 385 lb-ft at 5600 rpm. Engineer Fred
Rozario says the extra valve increases horsepower by 13 to 18 percent over a two-
valve engine.
Gm is not saying where we will see the engine, but the small block is ready to go and
could be adapted for car and truck applications.

 

very nice, wish that would be another choice of engines when the new camaro get in production.

 

Sweet, hopefully they will release the heads thru performance parts and then we cna just swap them on any LS2 or L92 block.

 

In case anyone was wondering what they look like

 

GM never fails to impress me.

one question, where do the spark plugs go?

 

Didn't they gives us a glimps of the heads before?

 

look right behind the purple rocker arm, youll see a hole behind each one, that looks like where it might go but im not sure.

 

good eyes, didnt catch that. that would be a great place to put them. appears they would be relatively easy to get at there.

 

what are the holes by the exhaust side head bolts?

 

watch it be for the new camaro=)

 

looks like a very nice piece of kit! and would be ace if it bolted straight up!

annndddd no one has said it a waist of time yet! YEY

Chris.

 

It might bolt on a LS1 block but i see a new intake being used for it and it is not the same exhaust ports so new headers will also be required. But the future looks bright

 

Things are gonna get crazy around here........

(in an announcer's voice)

LET THE DEBATES BEGIN!!!!!!!



We'll see, it will be interesting once somebody gets there hands on these and starts working and flowing them. What do ya figure 2 years from now?

 

pretty sweet, but idk if its worth swapping over to that setup compared to ls7 heads and intake, not to mention that it needs new headers (idk if its correct, just what he said)

the thing that impressed me the most is a stock gm motor spinning that high, thats pretty damn cool (so is the ls7 hehe)

 

seen it

 

That's great news to hear. It's another product the performance minded would love to buy.


Knowing GM's record of being slow to release a product, the question is when can we go pick them up at the parts counter?

 

Looks to be a pretty large Combustion chamber with the way the exhaust and intake valves are spread apart.

 

I am thinking that hole above the rockers might be the injector holes, and the holes right next to the lower head bolts will the the spark plug holes.

 

come on then katech, what are these things like????

Chris.

 

I'm not positive on this, but won't the LS7 intake and heads NOT fit on the LS2/L92 block??