Quote:
Originally Posted by 68pont455
big block chevy 496 vs 466
4.31 bore 13-1 compression
stroke off 4.00 6.385 rod r/s of 1.596 vs. stroke of 4.25 6.385 rod 1.502 r/s
any thoughts on rod stroke ratio. i have seen reviews on this subject from it means nothing to it is one of the most critical things in a rotating assembly beside rod and crank quality steel and machining.
i would go with the better r/s ratio but it means 30 cubes and possibly 45+ horsies lost or the lesser r/s ratio and possibly have longevity issues? Will be looking for around 700 hp so what does anyone out there think of this subject.
zac
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OK their are a few different ways to get those cube #s sooo i an not sure what combo you are thinking about, having said that this could be a great post, with lots of info but to those who dont get the differences wont get it > example > LIKE the short rod motor can extrap more power from the low # rod stroke ratio with the correct cam timing and make more power VERSES the longer roded motor with greater dwell time at top dead center can make greater power but what does it give up < SPEED of torque ??? - what combo were you looking at BTW - jz