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Message: [QUOTE="Morgan@Midwest Diesel & Auto, post: 587290, member: 8143"] But if you put similar sized single chargers and the same cam the torque curve would be very similar. Horse power and torque have a lot in correlation with bore and stroke. In which the two engines are very close to each other. 6.4's torque comes from compound chargers and a little bit of cam profile differences. They both have 105mm stroke the 6.4 has 3mm more bore. So by bore/stroke relation the 6.4 has a higher rpm powerband than a 6.0 if both similarly equipped. Just think big bore short stroke=higher rpm band Big stroke small bore=lower rpm band Given the rest of the engine is the same. [/QUOTE]

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