I'm thinking of upping my dispacement to 1450cc.Has any one done this,any problems?

 

im also curious about this, anyone?

 

wow, i never heard of a kit that big. thats pretty sweet!

can the bottom end take it reliably without problems after x number of miles?

i would assume bearings wear faster with the added stress.

the case and evreything was designed to withstand a stage 1 1200cc upper end. the most common mod and most popular configuration.

 

He must be talking about NRHS 90 ci big bore kit, http://www.nrhsperformance.com/ekitsportster04.shtml
Is 1200 not enough? you always want more

 

The problems will be mostly with the build. get a good "wrench" that knows what he's doing then you should be ok.&nbsp\\;You may need some motor mount work but that will be minor.

 

Cases will need to be bored out.....which means completely stripping the entire engine,&nbsp\\; not too bad if you know what your doing and have the right tools, but could be a nightmare otherwise. &nbsp\\; Beyond that, the most important part will be choosing the right combination of parts....for example, cams, ignition, carb work, the amount of head modification.&nbsp\\; I have a buddy that did the nhrs 90" kit, and it turned out real good, as a matter of fact he just did a 3000 mile road trip the other week, with no problems.&nbsp\\;

 

I asked the guy that did my 1200 conversion for me because i was considering it also.He told me that it would be around 5000 dollars to do it so i decided 1200 was big enough for me.

 

Go read about this:
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http://www.sportster.org/tech/quad88/
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I know this wasn't your question, but you should be able to get the power you want out of a 1200 or 1250, IMHO.
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If you do this, you might as well scrounge up the $$$$ and throw in a BAKER 6 speed while the whole motor is apart.
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My 883 is 1200 converted, and a "74" sounds great to me!
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~Joe
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That was a very entertaining read, thanks for posting!

 

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Wow, great stuff.&nbsp\\; Thanks for posting.&nbsp\\; I would be very interested in having that mod but need to find a wrench who I trust and also let me help so that I can learn.