Cams recognition

How to recognize the different cams.....
Finding it difficult to recognize some of the different cams on e.g Ebay etc due to some models maybe are called something different countrys in between or they overlap in the years

Cams from the z900-z1000a ('73-'79) is with 3 mounting wholes for the sprocket and with the same grind meaning the ones you find with 3 mounting wholes for the sprocket fits the 73-79 models?? and from there they are with 2 mounting wholes meaning you'll need to bye ore modify a sprocket to convert??
-is the sprocket mounting the only difference on all of the kz1000 cams??

And how much lift is the max before you'll need to modify your '73-'79 head for rotation??

Been trying to search the form for answers but nothing specific came up

Its really hard to reconize cams by a picture. the 3 hole mounts are for kzs up to 1980. The J model cams are two hole i believe. I think APE sells sprocket conversions if needed. But be careful buying used cams of ebay. one of the cam lobes could be wiped and you wouldnt even know it. The only real way to be positive about what your getting is by measuring the cam lobes. Iam not sure what the biggest cam you can run without modifing the head. I think it was about 380 something, but could be wrong. But most cams when bought new will say drop in. That implies that no head machining is neccasary. I know i have to modify my head to run 418 lift cams (psp-3x cams). Also running a decently hot cam youll need to keep a close eye on your valve clearances or you could spit a shim. Thats why i went with under bucket shims to eliminate that problem. You can run stock kz650 buckets which are shim under buckets. But you got to change the retainers also.

No eBay APP ID and/or Cert ID defined in Kunena configurationfound these on ebay in which i mean should fit the 73-79 head and from what i could google have exhaust: 280gr. 8,4mm lift.
inlet: 280gr. 8,8mm lift.
but not sure due to the 1980 model didnt really come to Denmark

All STD 3 bolt cams are basically the same grind no matter what year.
The later 2 bolt however do vary slightly from model to model.
The GPZ1100 unitrack being the highest lift.
You can get conversion sprockets for any combination.
What are you trying to achieve ?

Zed dont really know- only thing is i would like to have the power rather between 1000-6000rpm than 6000rpm + meaning a driveable 'citybike'
just found the cams im linking to, but not sure if they fitted my '78 head!!

have 1197cc wiseco kit, 33 wm smoothbore...

And another thing before you send me links to Pit stop performance or Dynomann etc is that to get goodies into Denmark you have to add shipping + 38-40% taxes on everything so thats why it sometimes get more fun/challenge to 'build' with cash/hp ratio..if you get my point

Holy moly Zed1015 just looked trough your 'new project' thread....amazing job

Haven't you got any cams at all ???
Those in the link are just STD cams.
In my everyday bike (Z1R) I have 1075 wiseco's, 32mm smoothbores ( 1000 katana re-spaced) and STD cams degreed in on a manzano ported head with 1mm o's valves.
It goes VERY well and is smooth from tickover , the ported head and larger valves made the biggest improvement.
I did run some Engle fast road cams for a while but the increase was all top end and a willing to rev to 13000 rpm, the novelty wore off after a short time and I dropped the std ones back in.
It makes for a smooth motor that will still pull 160mph and get 50mpg cruising.
I would use what you have and port the head, degree in your std cams if you have them and see how it goes. You can always find some better cams later if needed.

LarsLykkegaad wrote: Holy moly Zed1015 just looked trough your 'new project' thread....amazing job

Here's a couple more.
www.z1ownersclub.co.uk/forum/viewtopic.php?t=7720

www.z1ownersclub.co.uk/forum/viewtopic.php?t=23190

My next one is a 1428 supercharged Moriwaki

To find lift of cam:

measure the base circle.

measure the lobe lift.

minus the base circle and you have the lift.

base circle: 1.110
lift: 4.110

cam lift: 3.00 or .300 lift

I got the std cams, but everyone says they gonna steal to much when you run 1075cc + bore..
Thinkig about doing the J or GPZ swap!
but just heard the z1r had a better grind than the std one!?!?

it reminds me of my 'Featherbed 865' build i did - know how 'easy' picture looks compared to how much the smallest brackets takes....
www.triumphrat.net/biker-hang-out/159756...therbed-865-a-5.html

You must have some spare cams from all of your fun which just takes space???
see you are from the UK (EU)

If you are going to hot rod one of these engines. You must get the head done first in my book.

The head needs to be Ported, bigger valves, quality seals, HD springs and finish with a quality valve job.

You get the head done right and all will follow.