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Author Topic: Cylinder Block Difference  (Read 719 times)

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Offline MikeSimon

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Cylinder Block Difference
« on: January 06, 2017, 12:24:39 PM »
I have a cylinder block that DOES NOT have the 12mm knock pins with the "packing" around the studs between cylinders 1-2 and 3-4. Everything else looks like the other SOHC blocks I have. Is it an "F" block? can you use it together with a K head and a K head gasket?
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1973 CB350F -sold
1974 CB350F -218 orig miles, sold
1976 CB750K - in restoration

Other Hondas:
3 x CBX
CB1100R
GB500
Plus Kawasakis, BMws & Ducatis

Offline markreimer

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Re: Cylinder Block Difference
« Reply #1 on: January 06, 2017, 12:49:00 PM »
I'm pretty sure early K blocks didn't have them either. Check the parts fiche for K1 or something. I have a k4 and it has the pins, but many people leave them out when rebuilding


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Offline BPellerine

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Re: Cylinder Block Difference
« Reply #2 on: January 06, 2017, 12:53:53 PM »
it is a k block,k2/k3 or earlier,it will work with the right gasket.bill
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1978 CB 750K ard and webers
another anfob

Offline MikeSimon

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Re: Cylinder Block Difference
« Reply #3 on: January 06, 2017, 01:24:03 PM »
Thank you guys! I should have checked my K1-K3 parts manual. That is indeed it. So, the right gasket would be an early head gasket?
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1973 CB350F -sold
1974 CB350F -218 orig miles, sold
1976 CB750K - in restoration

Other Hondas:
3 x CBX
CB1100R
GB500
Plus Kawasakis, BMws & Ducatis

Offline BPellerine

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Re: Cylinder Block Difference
« Reply #4 on: January 06, 2017, 04:14:50 PM »
yes.bill
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1978 CB 750K ard and webers
another anfob
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