Kz1000 bottom end and a kz900 head

lttletodd
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Kz1000 bottom end and a kz900 head

05 May 2013 22:39

Ok guys heres my issue. I have a kz1000 bottom end pistons and cylinders. But i have a kz900 head. Will the exhaust collars off a 1000kz1000 work and is there a difference between the years? Im putting 8mm studs in it.

Oh god... why are there extra parts left over....

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wireman
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Re: Kz1000 bottom end and a kz900 head

05 May 2013 22:44

#585869

As long as its a 77-78 bottem end it will drop right on,if its a 79-80 bottem end youll need to use the cam sprockets off the 1000 camshafts depending on what crankshaft it has.

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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MFolks
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Re: Kz1000 bottom end and a kz900 head

05 May 2013 23:28

#585881

The Z1 and Kz900/early Kz1000 had M6 X 1 studs for the exhaust system. On the "J" engines, Kawasaki went to M8 X 1.25 studs.

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Dr. Gamma
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Re: Kz1000 bottom end and a kz900 head

05 May 2013 23:36

#585885

MFolks wrote: The Z1 and Kz900/early Kz1000 had M6 X 1 studs for the exhaust system. On the "J" engines, Kawasaki went to M8 X 1.25 studs.

The 1977 KZ1000A1, and the KZ1000B1 both had 8mm exhaust studs. Only the Z1/KZ900 heads had the little 6mm exhaust studs.

Thats the way everybody spots a 900 head from a 1000 head.

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wireman
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Re: Kz1000 bottom end and a kz900 head

06 May 2013 00:22 - 06 May 2013 00:28

#585896

you can use the the newer collars on the smaller studs in a pinch with some flat washers

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

Last edit: 06 May 2013 00:28 by wireman.

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lttletodd
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Re: Kz1000 bottom end and a kz900 head

06 May 2013 00:30

#585898

I appreciate the info everyone! She's been a very long project. And she's almost done. Hopefully should be up and running by next weekend!

Oh god... why are there extra parts left over....

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lttletodd
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Re: Kz1000 bottom end and a kz900 head

06 May 2013 00:31

#585899

What dimensions are different between the newer style the older style collars?

Oh god... why are there extra parts left over....

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wireman
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Re: Kz1000 bottom end and a kz900 head

06 May 2013 01:39

#585906

The collars are physically the same 73-80 900/1000,only difference being 8mm holes starting on 77 kz1000 versus 6mm for 73-75 z1 900 and 76 kz900 and im guessing the early 77 900s used 6mm studs also.

posting from deep under a non-descript barn in an undisclosed location southwest of Omaha.

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LarryC
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Re: Kz1000 bottom end and a kz900 head

06 May 2013 07:17

#585930

J model collars will fit and look a lot nicer IMO.

Larry C.

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