So what do you think of this motor Is it Rare ?

[Chevy454]

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I'd be willing to bet you could get that kind of power from a naturally aspirated LS-6.

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You could EASILY get that kind of power from an LS-6 (either the 1970 or the 2003 version!). I'd say the Pure Stock LS-6 cars are not too far off that number, and they are running through the stock exhaust manifolds...

[Mark_C]

Here's one for 500 bucks less than this auction:

http://www.gmpartsdirect.com/results...umber=88961499

You could even get S/N 001 if you want it.

Still a lot of cash for an engine.