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KH or KHK

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hotrods1

Posts: 228

Joined: Sat Jan 15, 2000 1:01 am

Location: Burlington Iowa USA

Post Mon Nov 07, 2005 5:53 pm

KH or KHK

Does anybody know the difference between KH cylinders / heads and KHK cylinders / heads? And how to identify them? I have a '56 KHK with pretty screwed up cylinders and am considering putting some other KH's I have on it. But if the cylinders that came off it are KHK and worth the effort I might repair them. The parts book lists different part numbers but I've compared and I can't see much difference. Any thoughts?
Larry
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BREWSKI

Posts: 919

Joined: Sat Mar 27, 2004 1:01 am

Location: RENO,NV. U.S.A.

Post Mon Nov 07, 2005 6:59 pm

KHKcylinders have polished ports,and KR size valves. I used to own 3 KHK complete engines,still have a spare set of KHK cylinders. brewski
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xlr

Posts: 149

Joined: Thu Aug 05, 2004 12:01 am

Location: calif

Post Mon Nov 07, 2005 7:25 pm

big diffrence is kh cly. is longer than k
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BREWSKI

Posts: 919

Joined: Sat Mar 27, 2004 1:01 am

Location: RENO,NV. U.S.A.

Post Mon Nov 07, 2005 7:44 pm

That is true,the obvious difference is in the base flange. BREWSKI
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hotrods1

Posts: 228

Joined: Sat Jan 15, 2000 1:01 am

Location: Burlington Iowa USA

Post Mon Nov 07, 2005 9:40 pm

khk and kh are both the long stroke motors. so cylinder length would be the same correct?
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RUB-BOY

Posts: 20

Joined: Mon May 16, 2005 12:01 am

Location: FINLAND

Post Tue Nov 08, 2005 4:00 am

I think only difference between KH/KHK cylinders is polished ports and combustion chamber.RUB-BOY
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Pa

Site Admin

Posts: 4679

Joined: Sun Mar 12, 2000 1:01 am

Location: Ohio USA

Post Tue Nov 08, 2005 11:00 am

As I recall from my 55 KHK and what the old timers told me when I owned her. Polishing was really the only differences between the two. The KHK was polished everywhere flow restriction could be a factor, from intake, to cumbustion chambers, to exhaust. I almost positive on this. "Almost" :wink: Pa
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xlr

Posts: 149

Joined: Thu Aug 05, 2004 12:01 am

Location: calif

Post Tue Nov 08, 2005 11:12 am

yes kh and khk cyl. same. polished on khk not kh. heads same u can use kr heads they help a lot. when u install heads try to bring to kr specs
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hotrods1

Posts: 228

Joined: Sat Jan 15, 2000 1:01 am

Location: Burlington Iowa USA

Post Tue Nov 08, 2005 8:37 pm

Thanks for the info,
I thought there wasn't much difference. I'll use my better KH cylinders.
Larry
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greybeard52

User avatar

Posts: 1050

Joined: Tue Dec 05, 2000 1:01 am

Location: Chatham, NJ, USA

Post Wed Nov 09, 2005 9:02 am

KH ports can use a LOT of cleaning up. Mine had a lot of really rough spots; cleaning up and polishing only took a couple of hours. Was worth it. G 8)

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