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Old 06-17-2013, 09:57 PM
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It's always the same old rhetoric about levers and piston speed and this and that. We're not talking about formula one or top fuel dragsters. I've driven 1960's era C40's and C50's (big trucks with dump beds that haul big loads) those are much more massive than any Impala. What were those powered with? Oh that's right, these "supposedly only good for high-revving" 283's and 327's. We can argue the science of it at it's extreme limits all day long but all that matters is that in a PRACTICAL APPLICATION, the sum of the parts out weigh the bore to stroke ratio. ESPECIALLY on identical platforms. Small ports, small valves, the right cam and CORRECT GEARING, will make more a difference than the miniscule amount of stroke the 305 provides over the 327. The fact that the 327 can take advantage of a larger cam at a low rpm (because it's a bigger engine than the 305) is a bigger factor than the bore to stroke ratio.
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