"GM says it will produce a 4.3-liter "XV8" engine with direct-injection technology. This engine will feature a narrow 75-degree bank angle with two camshafts in the block and a three-valve-per-cylinder architecture. The XV8 will also have air-assisted fuel injection to help make sure the fuel is properly atomized as it is sprayed directly into the cylinders.

GM claims the engine will produce up to 300 hp in a package much smaller than a conventional V-8. GM's GDI technology also allows the engine to run at a relatively high 10.75:1 compression ratio while still using regular-grade gasoline, which should further enhance efficiency. The greater specific output, power density and efficiency due to the integration of GDI with other technologies will surely cause it to be applied to other GM engines."

That would be interesting... dual under head cams lol


Full article here click!

more XV8

 

I don't know about all that but, what I do know is that I have a 4.3. When I put 93 and a few gallons of 100 in the tank my **** still detonates @ high rpms. Just my 2

Seth

 

This is the technology they use on the isuzu rodeos i think they were able to push 250hp out of a 3.5 (not that high but) i would think if they made a 4.3 they would definatly reach 280-300.

 

might be from your descreened maf do a search on it for the v8's no one reccomends it

 

It'll be nice when they make a 6.0 or bigger engine with that technology. I'd take my 300 HP over a 4.3 liter's 300 HP any day.

 

Any word on what their aftermarket potential will be? I'd be all for those motors if you could get 800+hp out of them.