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newtosupdream

Joined:

Apr 12

Posts: 4

honda cb400n superdream cylinderhead

Hi there,

I'm rebuilding my 1984 Honda CB400N Superdream and need to replace the cyclinderhead. Does anybody knows if a 1982 Honda CB450T Nighthawk cylinderhead fits on the 1984 Honda CB400N Superdream engine. If the cyclinderhead is compatible do I have to use a cb450t cylinderhead gasket or can I just use the cb400n gasket? 
Thanks in advance for your advice

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  • Posted 2 years ago (26 April 2012 20:10)

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littleredrooster

Joined:

Aug 02

Posts: 467

Superdream

From memory, they're completely different.

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newtosupdream

Joined:

Apr 12

Posts: 4

honda cb400n superdream cylinderhead

Littleredrooster,

First of all thanks for you reply. In the meantime I've done some little seeking for myself and came up with this from an online honda partsstore in the Netherlands (see the attached files). Both cyclinderheads have the same OEM partsnumber and at least on the picture they seems identicall. I have no intention in buying a new cyclinderhead and just wanted to buy one from ebay and rebuild it myself. But cylinderheads for a 1984 Honda cb400n seems very hard to find on ebay, but it seems a little bit easier for the cb450t models. Saying all this I just wanted to know from you the difference between the 2 models as you suggested in you answer and what's your suggestion.
Thanks in advance for your reply.

Attached images:

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smidget

Joined:

Nov 07

Posts: 2307

smidget says:

I

would suggest some inquiries to the Honda technical bods, they may be helpful, you never know.

Or contact David Silver who deals with Honda spares .

[This Reply has been modified by the Author]

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newtosupdream

Joined:

Apr 12

Posts: 4

honda cb400n superdream cylinderhead

In the meantime I downloaded a Clymer Honda 400-450cc Twins 1978-1987 manual and found out that the specification for the 1982 Honda CB450T cylinderhead is identical to the one of the 1984 Honda CB400N model so I bought and received one. Guess what it fits perfectly and I'm now rebuilding the cyclinderhead for further use. 

Thanks anyhow for your reply.

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