Quote:
emarine01,
The rod length listed in the PHR detail article is 6.125. With a 4.250 stroke thats a 1.44 rod ratio. Kinda kills the long rods are needed to make power thing 
They are not revving over 7K or so and have to put up good numbers even lower in the rev range than most motors, long rods help high RPM power and short rods help low RPM power. Proven many time over on dynos all over the world. Not a huge difference and probably less then 15 peak hp on most motors but it is still there. There are other places in most motors to find more of a difference for less dollars but in an all out motor they will find a R/S ratio that best fits there needs and in this case the heads give them awesome power up top and they need more down low so a short rod will help them where as if they were building a drag only motor where it stays at higher RPM all the time then they would probably have tried to find a little longer rod.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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