Call NRHS and ask for Dan, he's the owner. Tell him what you want to get out of your bike and he'll give you exactly what you need. Now if you go bigger than a 1250, you'll have to have your cases bored.

Its all bolt on, But they have to port your heads or you can get heads as part of a kit. They have the best customer service from start to finish.

http://www.nrhsperformance.com/

 

ZIPPERS has a kit that will take a 1200 to 100/100 without increasing ci. It is called "The Hammer" and works the heads, valves, hi comp pistons and includes a complete "THUNDERMAX". Runs around $3800.

Bwana

 

Just buy a Crotch Rocket,,wear a dark face shield and no body will know Its you XD

You still won't have the brakes or suspension to handle that kinda power,,
Unless ya just wanna drag bike.
$5,000 for the bike,,
$5,000 on motor work,,
$3,000 on suspension and brakes...
Getting all that to work together...

Fast as hell Crotch Rocket ready to go...
Half that..

 

what ever you do dont get screamin eagle you will never see those #s....LMAO..

 

Zippers Hammer Kit Dyno Sheet



Zippers Super Hammer Kit Dyno Sheet $4549.00

 

Above dyno sheets are from an 883, not a 1200. There are different kits for each motor. The 1200 takes the "Super Hammer" kit.

 

With the parts included in the super hammer kit. Put it in a 883 or a 1200 and they both end up at the same place. In the end the only difference you'd end up with between the 883 and the 1200 is the gearing.



Quotes from Zippers.

 

I'm thinking about doing an 88 or a 90 and I'd like to take it to the track every once and a while for fun but it will still be my every day cruiser so I want a balance between power and useability.

Does anyone have any idea how bad I'll kill my gas mileage with an 88"/90" ? ...I know there are a lot of variables like the tuning and such but I'm trying to get a rough idea before I start saving up for the build.

 

I just did my 2003 883 to the 1200 conversion w/10 to 1 pistons ,n4 cams,se II pipes, an k&n a/c,,rejetted the carb. ,,,,, thats fast enough for me,,,,the 1200's i ride with cann't stand me now,,,well up to 90mph anyway,,,,,but then again I would love grab a hand full throttle of 90hp an see what it feels like.....good luck with your build ,,,,ride hard.ride fast,but most of all,at the end of the ride,,RIDE HOME !!!!!!