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Old 10-22-2009, 09:34 PM   #1 (permalink)
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107" options

On an s&s 107 what are best bang for the buck the options to go
bigger, bore, stroke, both or what?. Is it possible to go just another
1/8 on bore?. What would that make it and would it be worth it?.
Just wondering what the different possibilities are.
Thanks Much.
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Old 10-22-2009, 10:16 PM   #2 (permalink)
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I would'nt recommend it, but increasing the stroke is the simplest way to increase the displacement. With 4.5" stroke it goes to 113". In my experience the 107" is the best running combo in 4" bore. I would have the heads reworked, bump the compression, and give it more cam. You'd be surprised the difference. Out of the box they make like 100-115 hp, with no tweaks at all, good head work and the rest should put you in the serious hp catagory.
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Old 10-23-2009, 11:27 AM   #3 (permalink)
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Leave the 107" as is , and re-work the heads, install a Wood 98, or 9F cam, bore the G carb, and install a Thunderjet.
Along with a Dyna 2000i ignition, and a Supertrapp 2/1 with about 20-24 disc's, would have you realizing that you did it correctly once tuned!!!!
Scott
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Old 10-23-2009, 01:04 PM   #4 (permalink)
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ill second hillside.. the 107s s&s or not are lil stump pullers. just need the right heads and manifold
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