GS1150 crank in a GS1100

[GSJimbo]

Just wondering the ins and outs of putting a 1150 crank and rods in a 1100 I know I'll need new pistons and clutch hub, can i still use my head or go to a 1150 head.....just wondering Thanks

[Dink]

You have it covered with what you are swapping , of cause an 1150 head flows better!!
Dink

[Rif Raf Racing]

1150 head

Thanks Jimbo,I ran a 93 gsxr for 6 years,with some typical mods it made 140 bhp.I threw 50, 70, and eventually 100 hp of nitrous at it.It ran 9.0's @ 157 like nothing,and it never sneezed.I broke it up,and sold it before it was time to freshen it up.Now I have an 83 gs1100,bought it stock,put an 8" arm,97 gsxr wheels,02 gsxr frontend,1166cc kit,34 flatslides,etc.It runs 10.8's and 10.2's with a baby shot of juice.the thanks is,these bikes are more fun to tinker and experiment with than the (tear the bike apart to change the plugs)bikes of present.And you hit on an option/question that I was going to ask myself.thanks, Steve

[Anonymous]

Just wondering the ins and outs of putting a 1150 crank and rods in a 1100 I know I'll need new pistons and clutch hub
I've got a GS1150 crank in my 1100..
you'd need to get new pistons because of the 20mm pins also get an 1150 clutch hub with gear because the no. of teeth differ from the 1100..
and finally there's the 29mm crank taper..

can i still use my head or go to a 1150 head
yep.. either the 1100 or 1150 will bolt up nicely (mind the different length studs for the 1150 head though)[/i]