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 GM Announces Big Investment In Next-Gen Small Block V-8 Engines

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merlin5577
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PostSubject: GM Announces Big Investment In Next-Gen Small Block V-8 Engines   April 27th 2010, 11:51 am

General Motors has announced that it's investing more than $890 million to build its next-generation small-block truck and car engines. The engines are expected to appear in the redesigned Chevrolet Silverado and GMC Sierra when they debut around 2013.

According to GM's news release, "the next generation small block engine family will have unprecedented fuel efficiency through direct injection and an all-new advanced combustion system design. The new engine family will rely exclusively on aluminum engine blocks, which are lighter and contribute to the improved fuel efficiency. In addition to being E85 ethanol capable, these engines are being designed with the capability to meet increasingly stringent criteria emissions standards expected throughout this decade."

GM's coy reference to "an all-new advanced combustion system" may indicate that we'll see an all-new approach to variable valve timing in an overhead valve (pushrod) engine that would allow cam phasing of both the intake and exhaust valves, like a dual overhead cam V-8. In GM's current 5.3-liter small-block OHV V-8, cam phasing is limited to just the intake valves because of its cam-in-block architecture. The new method could use so-called "cam-in-cam" timing.

"These will be V-8 engines," a GM spokesperson said. "They'll use aluminum across the board. That's all we can say for now."

In 2007, before GM scrapped its original plans for its next-generation full-size pickups that were being developed under the code name C3XX, word leaked from United Auto Workers sources that a new “Gen V” overhead valve V-8 was going to replace the current 315-horsepower, 335 pounds-feet of torque 5.3-liter V-8. The final displacement wasn’t determined yet because it was referred to as 5X.

The new engine plans would create or retain more than 1,600 jobs at five North American plants.

http://news.pickuptrucks.com/2010/04/gm-announces-big-investment-in-nextgen-small-block-v8-engines.html

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-Robert.
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2011 Volkswagen Jetta TDI 2.0L 6A
2010 Chevrolet Malibu LT 2.4L 6A
2003 Chevrolet Silverado LS 6.6L 5A
1997 GMC Suburban SLT 5.7L 4A


"If you dont stand behind our troops, feel free to stand in front of them."

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doc_auto
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PostSubject: Re: GM Announces Big Investment In Next-Gen Small Block V-8 Engines   April 27th 2010, 5:22 pm

when they make the minimum 1 fer 1 horsepower to CI i'll be impressed. but its good that they're startin fresh
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Britewhiteram
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PostSubject: Re: GM Announces Big Investment In Next-Gen Small Block V-8 Engines   November 30th 2010, 2:56 am

duramax is very close to 1:1 hp:CI

cant see why a newly designed gasser should be able to get close as well

even with a 65rwhp tune my truck is at 365rwhp, and my CI is 402... that pretty close its 1:0.9

the new duramax makes about 330rwhp, so thats 1:0.83....... not bad if you ask me
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merlin5577
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PostSubject: Re: GM Announces Big Investment In Next-Gen Small Block V-8 Engines   November 30th 2010, 11:57 am

There is a huge difference between 1HP - 1CI at the crank, and 1HP - 1CI at the wheels.

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-Robert.
My Fleet;

2011 Volkswagen Jetta TDI 2.0L 6A
2010 Chevrolet Malibu LT 2.4L 6A
2003 Chevrolet Silverado LS 6.6L 5A
1997 GMC Suburban SLT 5.7L 4A


"If you dont stand behind our troops, feel free to stand in front of them."

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Britewhiteram
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PostSubject: Re: GM Announces Big Investment In Next-Gen Small Block V-8 Engines   November 30th 2010, 3:40 pm

at the crank is much easier, Im already at that, running about 420hp at the crank, puts it well over 1:1

the 6.0L is currently over that as well the 5.3 is very close to or over that level..... if you are refering to power at the crank affraid
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007jimmy
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PostSubject: Re: GM Announces Big Investment In Next-Gen Small Block V-8 Engines   November 30th 2010, 6:07 pm

i cant wait till the new motor comes out.. once a compatable tuner comes out ill be able to pull out even more power.. right now im averaging 80-100 hp at the wheels over stock on the LS platform. sources say ill be able to almost double the output of a stock genV motor and it will be safe daily driver power. I CANT WAIT... lol
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