Twin plug single plug heads?

[Ijustwanttoseethephotos]

No idea of the mileage, I sold my R1100GS over 7 years ago. I can't remember whether they were R1100S or R1150GS heads, probably R1100S because there would have been less demand for them, hence cheaper. The cams won't be still fitted as I only had them on trial, once again I can't remember the model, I don't think there was a lot of difference between the R1200 models.. The chap who fitted the seats is now retired. I'm sure you already know, but the real gains will come when you optimise everything else, bolting the heads on is the easy part!

 

[DrAlf]

No idea of the mileage, I sold my R1100GS over 7 years ago. I can't remember whether they were R1100S or R1150GS heads, probably R1100S because there would have been less demand for them, hence cheaper. The cams won't be still fitted as I only had them on trial, once again I can't remember the model, I don't think there was a lot of difference between the R1200 models.. The chap who fitted the seats is now retired. I'm sure you already know, but the real gains will come when you optimise everything else, bolting the heads on is the easy part!

Thanks again for the info. I have a set of reworked R1150RS cams that were profiled by piper - I'll compare them with the R1100S cams when the heads arrive. It was actually the 11S pistons that I was after - the heads were a bonus. My 1150 bitsa previously made 97bhp RW - hopefully this lot should break the 100bhp barrier Thanks for the info

 

[Ijustwanttoseethephotos]

Good luck with the project, keep us updated!