Author |
Message |
Dinuns1
| Posted on Wednesday, March 30, 2011 - 09:13 pm: |
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What is the biggest stroke you can put in a stock frame |
Jeffb
| Posted on Wednesday, March 30, 2011 - 09:19 pm: |
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S&S's 89" kit just barely fits. Jeff |
Dinuns1
| Posted on Wednesday, March 30, 2011 - 09:22 pm: |
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Jeff so can run that stroke with the rev perf cylinders with the correct pistons , what is the stroke of the 89'' kit |
Agusta74
| Posted on Wednesday, March 30, 2011 - 09:24 pm: |
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According to the Performance Handbook... section on big inch strokers... "4 1/8 fits" "4 5/16 barely" "4 1/2 no" The biggest cu that fits the frame is 94.2 cubic 4 1/8 by 3 13/16, by Truett. Book is 1997 so things might well have changed since then. Regards Gavin (Message edited by agusta74 on March 30, 2011) |
Agusta74
| Posted on Wednesday, March 30, 2011 - 09:29 pm: |
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S&S 89.0cu is 4 5/16 by 3 5/8. |
Dinuns1
| Posted on Wednesday, March 30, 2011 - 09:35 pm: |
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So it sounds like if i go with 4 5/16 x 3 7/8 i can make a mean motor , i know the 4x4 will fit with there mount |
Agusta74
| Posted on Wednesday, March 30, 2011 - 10:00 pm: |
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I would recommend buying a copy of Buzz Buzzelli's Harley Davidson Sportster Performance Handbook. I got one off ebay new and I have found it to be a mine of info. Regards Gavin (Message edited by agusta74 on March 30, 2011) |
Firemanjim
| Posted on Thursday, March 31, 2011 - 01:51 am: |
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100" S&S 4x4 fits in an S-2. |
Jeffb
| Posted on Thursday, March 31, 2011 - 08:33 am: |
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The 89" kit is about .430" taller than a stock engine. The 100" is .200" taller. The 100" requires S&S SA crankcases though so the price goes way up. S&S's catalog says the 89" kit won't fit, but it does just barely. The clearance problem is on the rear rocker box on the right side. |
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