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will a newer Zyphyr head fit the old Z1000 ?
Posted: Sat Feb 14, 2009 9:13 pm
Author: FJD
i have a 1976 Z1000 engine, will a 92 Zephyr 1100 head (dual plugs) fit ?
Posted: Sat Feb 14, 2009 10:06 pm
Author: Pigford
Hi...... Don't rightly know.... but I'd put money on it that the answerws NO

Posted: Sat Feb 14, 2009 10:08 pm
Author: Diesel
would it not just need an APE conversion kit same as a gpz11?
Posted: Sat Feb 14, 2009 11:44 pm
Author: Magnum1
Posted: Sun Feb 15, 2009 9:17 am
Author: FJD
hmm, so i will have to find out myself, picked one up cheap,
btw hello to everyone !
I´ve been registered for quite a while now, as i have a Kwaka-engined Rickman that needs a serious overhaul, but time permitting, i did not start by now...

Posted: Sun Feb 15, 2009 10:10 am
Author: Magnum1
You could try asking Rob at Mistral Engineering
http://www.mistralperformance.com/
He's loves an old Zed and has a lot of knowledge. If he does not know, his ex partner John Carpenter should know.
Good luck,
Rod

Re: will a newer Zyphyr head fit the old Z1000 ?
Posted: Sun Feb 15, 2009 10:32 am
Author: Pigford
FJD wrote:i have a 1976 Z1000 engine, will a 92 Zephyr 1100 head (dual plugs) fit ?
This is gonna be
velly interesting..... Be sure to keep us updated with your findings

Posted: Sun Feb 15, 2009 10:57 am
Author: gbh
If it were possible and provided a benefit, my guess is that we would have already seen these conversions done many many years ago.

Posted: Sun Feb 15, 2009 1:25 pm
Author: chrisNI
As far as I know nothing off the Zephyr engine fits the Zed engine as it was a total redesign - the GPz engines were a development of the early motors so that was why some bits could be made to fit. I'm sure Steve Debben will be able to give a definitive verdict on this when he looks in.
Posted: Sun Feb 15, 2009 2:24 pm
Author: mick znone
Posted: Fri Feb 20, 2009 11:31 pm
Author: debben1
I am sure the studs are a different dimension apart. As Diesel has pointed out the cam guide wheels are missing so the cam chain drive would need to be re-engineered, another problem would be the combustion chamber volume which would require modifying. You would also need to fabricate an exhaust to fit as the ports are a different spacing. inlet ports are also different although you could fit the Zephyr carbs if they clear the Z tank, so the answer is it could be possible with lots of work, but I would ask why, 8 plugging the Z head is far simpler and a lot less expensive. Regards Steve