Proper head and cams

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20 Mar 2012 10:36 #510824 by Yorke2112
Proper head and cams was created by Yorke2112
I have a kz650 that has 750 cylinders and a big bore 810 kit installed. I am currently using the 650 head with 750 cams, and 28mm mikuni's.

I have a torn apart kz750 motor w/parts, and an 82 GPz 750 head minus cams. Right now, the bike runs pretty damn good, but I have been wondering if I should build the 750 motor. Put the 750/810 big bore cylinders and GPZ heads with bigger cams.

Do you think there would be a big performance increase? Enough to warrant building the 750 and tearing the 650 apart? What are the biggest cams you recommend for street use?

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20 Mar 2012 21:56 #510920 by LarryC
Replied by LarryC on topic Proper head and cams

Yorke2112 wrote: I have a kz650 that has 750 cylinders and a big bore 810 kit installed. I am currently using the 650 head with 750 cams, and 28mm mikuni's.

I have a torn apart kz750 motor w/parts, and an 82 GPz 750 head minus cams. Right now, the bike runs pretty damn good, but I have been wondering if I should build the 750 motor. Put the 750/810 big bore cylinders and GPZ heads with bigger cams.

Do you think there would be a big performance increase? Enough to warrant building the 750 and tearing the 650 apart? What are the biggest cams you recommend for street use?


The 750 head flows 10CFM more @10" of water than the 650. With an 810 piston kit, I'd go that route.
Larry C.

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22 Mar 2012 06:51 - 22 Mar 2012 06:52 #511200 by zukdave
Replied by zukdave on topic Proper head and cams
Intake ports from my 650 and Gpz 750 heads.
[IMG
1980 KZ650 F1
ZX750A1 motor.
Wiseco 810cc kit.
Zukiworks racing ported head.
VM 29 smooth bore's.
Dyna 2000 Ign. w/Dyna mini coil's
APE cylinder stud's and nut's.
APE valve spring's.
APE Track King clutch.
V/H KZ1000 sidewinder.
3.5x18 laced to a KZ1000 disk hub.
150/60/18 Shinko 006 Podium.
63" wheel base.
Last edit: 22 Mar 2012 06:52 by zukdave.

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