Going from a 88" to 100", WITHOUT boring cases
Ultimate HDF Member
Joined: Mar 2009
Posts: 6,146
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From: along the Front Range in Colorado
...... and i do believe you are correct on this
.... 95" was as large as the MoCo went on the original TC, any bigger & you had to stroke it.
.... 95" was as large as the MoCo went on the original TC, any bigger & you had to stroke it.
Outstanding HDF Member
Joined: Mar 2008
Posts: 2,306
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From: Everywhere
the original CVOs (called SEs at the time) were 95" (a bored 88)
then the CVOs became 103, a bored and stroked 88 (or a stroked 95, however you want to look at it) stroker kit available in P&A catalog
the 96 was a stroked 88
88/96 same bore
95/103 same bore
Club Member
Joined: Jun 2007
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From: Bedford UK
If you insist on a 'square' engine the closest you are going to get is an S&S 111", which is 4 1/8" square. With a stock H-D crankshaft the largest bore available will give you 98", falling short on bore diameter by a mere 1/16". Surely that is close enough?!
I'd call S&S or another manufacturer and get their opinion . . . I believe that I read in one of Donny's books that 107 ci is the largest displacement without case modification. For a 103 ci like mine, that wouldn't be a large enough increase to justify the expense and hassle. But for 95/96 ci I would think it worthwhile . . .
Mark!
Mark!
Tourer
Joined: Jul 2007
Posts: 250
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From: Suffolk, VA
I'd call S&S or another manufacturer and get their opinion . . . I believe that I read in one of Donny's books that 107 ci is the largest displacement without case modification. For a 103 ci like mine, that wouldn't be a large enough increase to justify the expense and hassle. But for 95/96 ci I would think it worthwhile . . .
Mark!
Mark!
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
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From: SE Michigan
Harley just came out with a bolt on 110" kit that has a steel sleeved jug that has a thin wall jug that allows for a 4" bore without modifying the cases. I just had the first run over my lunch hour on this configuration after the techs got it installed. The info on this kit is attached. If you need one of these kits my dealership has them in stock. Message me if you'd like to get one.
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Joe Kucinski
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Joined: Jun 2007
Posts: 9,193
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From: Richmond, VA
That's exactly what I said on the first page. Put the new big bore kit that makes 96's into 110's, on an 88, and you should have a perfect 4x4 100 inch motor. But was told it won't work.