CZ Aftermarket Head. Period Item?

[090]

Is this a period part and therefore legal to put on a pre 70 bike or not?
Paul is banned from this discussion 

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=160526406588&ssPageName=STRK:MEWAX:IT

[paul]

 

[tony27]

Hopefully it'll end up in NZ so I can run 1 of my earlier barrels if the repaired 1 lets go, can't afford the moon money 6 stud barrels seem to fetch in the states nowadays
He had another 1 listed last week.
Pretty sure it's period but not sure on pre 70

[jimg1au]

i missed that 1 buy 1 pound you need a uk ebay addy for the last auction see what happens this time
jim

[Bamford#69]

Hi,
As long as you can find a photo, no problem, they were the hot gear for yellow tank 380's 71 /72
Don't get too excited though, the last JOK 5 stud radial finned head went for $350USD ex USA
maybe  someone will have a magazine article, pre 70,on them or an advert.
happy bidding
cheers

[tony27]

Another 1 but in the US instead

http://cgi.ebay.com/ebaymotors/72-and-Older-CZ-C-Z-400-JOK-Radial-Fin-Cylinder-Head-/390277846656?pt=Motorcycles_Parts_Accessories&hash=item5ade5f5680

[tony27]

Whoever won it in the end paid more than twice what the 1 sold by the same seller the week before, looks like I'll have to go back to looking for a 73 barrel instead

[jimg1au]

toney what do you need for your bike
jim
72 cz400 owner

[tony27]

A decent barrel, so far it's holding together after welding but a spare as insurance is always nice

[jimg1au]

they are a expencive item to buy on usa ebay lots come up but 250.00 plus is the cost.is yours 5 or 6 stud head.there is a cz400 parts motor on usa ebay now but piston is stuck.
jim

[jimg1au]

i am looking for a barrel and head at the moment as well. i want to stick a reed valve on one.i have a rare cz400 reed block with new reeds all recoed to go on but you have to take out shit loads of inlet alloy to make it work properly.also change the porting as well.i would still like to have the std yellow tanker engine as well
jim

[tony27]

Mines a 6 stud motor, have 2 sidepipe barrels bored out to 82mm.1 of these was fitted when my dad first bought the bike
Saw the motor you're talking about but US$1019.91 postage is a bit out of my price range 

[tony27]

I managed to score 1 last month out of the states, came up for $80us so I grabbed it before I even had the sidepipe in my possession. Quite a bit heavier than the original head but will definitely give the bike a bit of period trickness

[tony27]

Looks good fitted to my sidepipe motor, weighs about 1/2kg more than the standard head. Will be interesting to see how it looks when the frame is back from repair & painted, will be running twin plug ignition which comes in from the sides