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Re: 400 Vs 455
Sorry, dude. I know a couple of guys with CanAms. They can't them into the 14s in the 1/4 mile. The W72 is a smogger engine with no real power, unless MAJOR changes are made. And no, a '72 GTO with a 455 in it will run away and hide from ANY '73-'77 A-body. There IS a 500 lb. difference between them, you know. Still, I really like the looks of the '73 GTO and G/A, and of course, the CanAm is a "modern classic".
Also, the ability to "rev" in modern engine theory has little to do with bore/stroke ratio. We used to think so, but with all the strokers out there today, it has been proven to just not be "so". There are many large-cube Fords and Chevys that rev to 8,500 RPM without problems, even when the stroke is longer than the bore is "wide". Those 408 Fords are incredible... Same is true of the Pontiac. If you can get a pair of heads on it that will breath at a given RPM, it will go there. With all the good parts, and a better understanding of rod/stroke ratio and bearing "speed", we manage to get the long-stroke Pontiacs up there and live just fine.
Relax. You're preaching to the chior. I'm just trying to bring you up to date.
Jim
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