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Old Sep 25, 2011 | 03:45 PM
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Conversion Help! Does converting an 883 to a 1200 make the sporster any more top heavy than it is already?
 
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Old Sep 25, 2011 | 03:56 PM
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Originally Posted by Sharon88 883
Conversion Help! Does converting an 883 to a 1200 make the sporster any more top heavy than it is already?
Nope, if anything it will make it slightly lighter (in the sense that you won't even notice) as there is more meat inside the 883 heads than the 1200. Of course, it depends on the year of the bike as well and the kit that you go with!
 
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Old Sep 25, 2011 | 05:00 PM
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There's more metal in the 883 cylinders.
 
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Old Sep 25, 2011 | 05:10 PM
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No.

That said, I was surprised how much less top heavy my 1200C was compared to the Marauder 250s we learned on in the MC safety class I took... who'da thunk it?
 
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Old Sep 26, 2011 | 03:54 AM
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Some of us like to joke that fitting the bigger bores reduces weight! Which may be true. Don't be concerned, as any change in weight will be no more than a few ounces and you won't notice anything except the improved performance!

The most economical way to make your 883 into a 1200 is to change only the cylinders and pistons, but read up on other posts before doing anything, as there is a lot of good info here.
 
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Old Sep 26, 2011 | 08:01 AM
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When boring a 883cc to a 1200cc cylinder weight is reduced by over 4 pounds each.
 
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Old Sep 26, 2011 | 08:47 AM
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Originally Posted by grbrown
The most economical way to make your 883 into a 1200 is to change only the cylinders and pistons, but read up on other posts before doing anything, as there is a lot of good info here.
True, but if you're going to use stock 883 heads, you gotta use reverse dome pistons to allow for valve clearance. They're available all over the place. Wiseco seems to be a trusted, inexpensive brand.
 
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Old Sep 26, 2011 | 09:45 AM
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Originally Posted by HarleyScuba
True, but if you're going to use stock 883 heads, you gotta use reverse dome pistons to allow for valve clearance. They're available all over the place. Wiseco seems to be a trusted, inexpensive brand.
Agreed, which is why I also said look at other conversion posts in here, as everything Sharon needs to know has been covered here many times already! We could do with a Sticky for 1200 conversions.

I have only recently bought my SuperLow, but if I ever convert it I will use the stock heads with new barrels and pistons.
 
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Old Sep 26, 2011 | 11:24 AM
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Give NHRS a call. Dan is very helpful there. Their conversion kit is about half the price of HD. And you will have 1250 engine.
 
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