Quote:
Originally Posted by Jims Mongoose
So again why are the chevy engines struggling to get there and ford can put out a 550 hp engine right out of the factory? You know that car will be street driveable so how do they do it? 
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First of, it's only conjecture...it isn't in the public domain, yet, and isn't verified.
Second, it'll be a factor of rpm, if the engine IS capable of 8,000 rpm. The LS3, currently offered, is rated at a much lower rpm, with a 6600 rpm redline.
If you have the breathing capabilities to run to a higher rpm, you'll make more power. Pushrod NASCAR 358s are capable of near-900 hp @ over 9,000 rpm...but they're hardly streetable let alone EPA-CAFE-able...or a 5/100 warranty...