Ls5?
Ls5? 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.
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.
Originally Posted by zigroid
GM never fails to impress me.
one question, where do the spark plugs go?
one question, where do the spark plugs go?
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Originally Posted by DONAIMIAN
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.
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and would be ace if it bolted straight up! 
TECH Resident
Joined: Oct 2004
Posts: 807
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From: TAMPA by way of MIAMI!!!
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?
(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)
the thing that impressed me the most is a stock gm motor spinning that high, thats pretty damn cool (so is the ls7 hehe)
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?
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?
Originally Posted by Hennytime
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)