Early KZ1000 or J head?

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20 Jun 2007 17:22 #151255 by smd
Early KZ1000 or J head? was created by smd
Any experts out there who can identify this head from ebay photos? My guess is that it's the earlier type of head, but I'm not sure, and the seller evidently doesn't know. Thanks.

-Steve

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20 Jun 2007 17:31 #151257 by APE Jay
Replied by APE Jay on topic Early KZ1000 or J head?
Not without a link
www.KZzone.com

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20 Jun 2007 17:34 #151261 by smd
Replied by smd on topic Early KZ1000 or J head?
Don't the words "this head" show up as a link? Maybe it didn't work. Here:

Link

Post edited by: kzrider, at: 2007/06/21 06:20

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20 Jun 2007 18:21 #151277 by Jeff.Saunders
Replied by Jeff.Saunders on topic Early KZ1000 or J head?
It looks like a KZ900 head - the exhaust stud appears to be 6mm not 8mm - whatever, it's not a J head. So it's be a fit for a Z1 900 thru 1980 KZ1000
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20 Jun 2007 18:24 #151279 by kawsakiman
Replied by kawsakiman on topic Early KZ1000 or J head?
jeff is the man.
it's a kz head not a j
good price so far
someday i will be able to afford my kz habit.

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20 Jun 2007 18:25 #151280 by Duck
Replied by Duck on topic Early KZ1000 or J head?
That is NOT a J head.
100

XXXXXKawPen:the other green meat

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20 Jun 2007 19:14 #151310 by smd
Replied by smd on topic Early KZ1000 or J head?
Thanks, guys. But damnit--forty bucks buy-it-now, and it's local too. Ah well.

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20 Jun 2007 23:05 #151384 by APE Jay
Replied by APE Jay on topic Early KZ1000 or J head?
Yep 900. Probably has cracks from the exhaust seats to the spark plug holes.

Jay
www.KZzone.com

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21 Jun 2007 11:28 #151500 by kawtoy
Replied by kawtoy on topic Early KZ1000 or J head?
Can't beat it for the price. If it is complete junk then you are only out $38. I see a cam cap bolt missing. Maybe it is just missing or maybe it is stripped. I would count on installing a few helicoils, blasting the carbon of the pockets. At least that way you would not be disappointed if it needed work. It might be ready to bolt on. You just never know.
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21 Jun 2007 12:23 #151513 by wiredgeorge
Replied by wiredgeorge on topic Early KZ1000 or J head?
The head ain't a J and it ain't a 79/80... Jeff's eyes are better than mine on the stud size... I can't really tell if they are 6mm or 8mm but if they are 6mm like Jeff thinks, the head likely isn't a Z1 head as they were black for the first couple years. The 79/80 head have the holes running down to the exhaust port runners for reburn of goop.
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21 Jun 2007 12:25 #151515 by PLUMMEN
Replied by PLUMMEN on topic Early KZ1000 or J head?
74-75 z1s were bare aluminum;)
Still recovering,some days are better than others.

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21 Jun 2007 12:34 #151518 by Jeff.Saunders
Replied by Jeff.Saunders on topic Early KZ1000 or J head?
The cam caps tell you it's not a 73 or 74 head - those caps are 'ribbed' and these in the picture are not. The studs are certainly 6mm - so it's either a late Z1 or KZ900 head. The shape of the fins looks more like late Z1 style than KZ900. The KZ900 fins tended to be more 'knife-edged'. I'd say it's a 75 Z1B head.

Also, there are no castings in the intake area for the vacuum take-offs that you'd see on the earlier Z1 heads.
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