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99 dual plug head to 2005 sportster

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Old Jun 13, 2021 | 12:01 PM
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Default 99 dual plug head to 2005 sportster
Hi, I'm doing a budget build and I know theirs a way to fit a 99 sportster head to my 05 sporty, does anyone know how to do it?
 
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Old Jun 13, 2021 | 12:42 PM
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Originally Posted by Dukerogers
Hi, I'm doing a budget build and I know theirs a way to fit a 99 sportster head to my 05 sporty, does anyone know how to do it?

give us more details on what you’re doing, what you want to accomplish and parts
 
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Old Jun 13, 2021 | 12:47 PM
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Originally Posted by Madnss
give us more details on what you’re doing, what you want to accomplish and parts
so I have an 883 05 sportster that I'm putting a 1275 cc big bore kit on and my grand father gave me a pair of 99 xl1200cc heads I just trying to figure out a way to bolt them up and keep it rubber mounted... I sent them off to be ported and cleaned up, but before I sent them off I was trying to fit them up and the front mount wasn't bolting up. Could I just swap out the bolts or do I need a special bracket and is their anywhere else I'll need to chand the thread or size bolt
 
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Old Jun 13, 2021 | 03:05 PM
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Who makes the 1275 kit you have and have you ran this by them.
 
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Old Jun 13, 2021 | 07:41 PM
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Who is porting the heads? 04 and up heads fit 91-03 so they should work with minor changes. I’m not sure what all is involved, but it doesn’t seam complicated.
 
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Old Jun 13, 2021 | 08:57 PM
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The 1275 kit for the 883 probably has pistons for 883 heads. The 1200 heads will mess up your compression ratio.
 
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Old Jun 14, 2021 | 08:38 AM
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Putting 1999 XL1200 heads onto a 2005 models would be a giant step backwards. Those heads are crap. That goes for the dual plugged 1200S heads too. They're also small fin that will look funny and not cool as well.
 
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Old Jun 14, 2021 | 09:41 AM
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Originally Posted by Madnss
Who is porting the heads? 04 and up heads fit 91-03 so they should work with minor changes. I’m not sure what all is involved, but it doesn’t seam complicated.
hammer performance, yeah from everything I've seen they are mechanically the same or at least very similar.
 
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Old Jun 14, 2021 | 09:42 AM
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Originally Posted by apache snow
The 1275 kit for the 883 probably has pistons for 883 heads. The 1200 heads will mess up your compression ratio.
i got the kit set up for 1200cc heads from hammer performance
 
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Old Jun 14, 2021 | 09:46 AM
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Originally Posted by aswracing
Putting 1999 XL1200 heads onto a 2005 models would be a giant step backwards. Those heads are crap. That goes for the dual plugged 1200S heads too. They're also small fin that will look funny and not cool as well.
I know it will look a little odd, but may I ask what makes it crap? From everything I've seen they are nearly mechanically the same.
 
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