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Picked these up recently (along with the engine).
They are Kent Cams billet race cams with adjustable drive gears.
These are the rear cam set.

so what is your plan? whats the state of tune of the engine?

These are part of an engine I bought recently.
It has an HRC valve train with Kibblewhite titanium retainers (thought still using OEM steel valves).

Along with this, it has CP 12.8:1 pistons, Carrillo rods, Nova Racing close-ratio gearbox, Yoyodyne slipper clutch, Factory Pro shifter kit, and the requisite porting and flow bench work.
Because it's still using OEM valves (which have dished heads), the compression ratio is down to around 11.8:1.

The fellow I bought it from said that on the dyno it was producing around 145 HP and 75 ft/lbs torque on 91 octane pump fuel.
It still uses the OEM ECU with a Power Commander unit, so it still uses the 10,200 RPM rev limit.
The previous owner said that there was no tapering off of the power right to the rev limit.
If it could have revved higher (needing titanium valves), even more power would be gotten. He was quite impressed with it.
Considering the amount of money that was invested in it, I feel quite lucky to have been able to jump on this engine.

And BTW, I read the article on your bike in Performance Bikes (and Youtube videos). Damn shame it snapped a cam.
Hope you get her back in action soon. Emma seemed to enjoy riding it.

Sounds good! Are you in the USA?
Would think it would make more than 145.......ours is making 140 plus with standard cams and valve gear but with ported heads/Pistal pistons. Have raised the rpm to 10,800
Regards Adi

thats quite an engine you have there road or race use?

vmax wrote:Sounds good! Are you in the USA?
Would think it would make more than 145.......ours is making 140 plus with standard cams and valve gear but with ported heads/Pistal pistons. Have raised the rpm to 10,800
Regards Adi

It might not be red though Adi, hence the not as high as expected bhp
Paint it red and put some stickers on = 10% increase in power at least

vmax wrote:Sounds good! Are you in the USA?
Would think it would make more than 145.......ours is making 140 plus with standard cams and valve gear but with ported heads/Pistal pistons. Have raised the rpm to 10,800
Regards Adi

Yes, I'm in the USA.
While it's nice to know what power it made while he was racing it, it's not that important with myself, as I'll mostly be using on the street with infrequent track days.
There's no way I would have invested that much money in the engine for street use, but it was such a bargain I had to have it.

steve p wrote:thats quite an engine you have there road or race use?

Yeah I agree, it's got a lot of goodies in it. These deals don't come around often, so I jumped on the opportunity.
It was part of a retired race bike. The bike had a shunt during a race and they decided to retire it after two seasons.
The parting out of that bike financed their new race bike, a 2012 ZX6R.
The 600 allows them to compete in more varied classes.

This engine will live its life on the street with occasional track days.

Did you get any information on suggested service intervals? And are the cams higher lift , longer duration or both? and will you be keeping the close ratio gearbox for road use?
Just a few questions because im nosey

im busy buying up the wrong engine spares for mine by mistake at the moment! you can never have too many cylinder heads

The service intervals should be no different than normal, especially since it won't live at the upper end of the rev band as it would for racing.
The cams have both, higher lift and longer duration. The higher lift was the reason HRC (or Moriwaki) valve train parts are needed.
The Kibblewhite titanium retainers are used (in lieu of the aluminum ones from HRC or Moriwaki) for far greater durability.

The engine was recently serviced and was ready to go prior to shipping.
The engine was partially disassembled to hold shipping costs down.

I'm very interested to see what difference the Nova Racing gearbox will make for street use.
I'm using a 15/41 final ratio, so the higher 1st gear shouldn't be that bad.