Topic: GSXR cams in a Katana? Any Suzuki performance guys here?

[Scott S]

 I'm swapping a 2000 Katana 750 engine into a 1980 GS550. Had I been a little more informed about Suzuki performance, I would have looked for a GSXR750 engine instead.

 I have some BST36 carbs with RamAir filters and internal velocity stacks, a Dynojet Stage 3 kit and a Yoshimura pipe/muffler for the stock header. I'll also add a 5 degree ignition advancer or modify the stock one.

 I've read that the '86-90 GSXR 750 cams can be installed for a HP bump (as well as the '88-89 Katana 1100 cams).
 Been doing some reading and searching, but the info is scarce and the threads are old. Hey....who's modifying 20 year old Katana's these days anyway?!

https://katriders.com/forum/service-department/katana-how-to-s-faq-s/26784-installing-gsxr-cams-in-a-katana?t=75466

 I believe I've located a set of cams. These can be swapped right in using the Katana cam gears and valve springs.
 Is it worth $100-125 and my time to do this? One of the local speed shops that deals with late model performance (relative to the vintage stuff we deal with) says I can probably get 100HP to the wheel with the aforementioned mods and some dyno tuning. Are the cams worth it?

[seanbarney41]

Building a stunt bike? lol...I think all the oil boiler stuff is pretty inter-changeable.  I still have not figured out where the head on my 86 slabbie came from, but due to some weird little spark plugs, I know it is not original to the 86 gsxr.  I have found tons of stories of swaps that have been done, but very little hard data as to how to identify various components.  I am thinking that certain models and years had tappet adjusters similar to our Honda's and other oil boilers used shim and bucket...so that could present potential problems, but I really am still learning this engine family that ran from 1985-200?

Next just swap that Bandit 1200 motor in there.  That should get the front up.

[Scott S]

 The only reason I didn't go with the 1200 is because you have to pull the engine for valve adjustment. The 600/750 is pretty tight as it is.

 My engine uses screw type adjusters, thankfully.