NF vs. KX Heads

[Alan Kramer]

A few questions about NF heads:

Is a NF head simply a KX head with bigger valves, or is it a different 
casting?  I know the NF block is 82.5mm vs. 81.0mm on the KX, so is the 
diameter of the combusion chamber on the NF head 81.0 or 82.5mm?  If it's 
82.5, does this pose any problem when bolted to a KX motor (use the KX head 
gasket, right?)  Also, when the C/R was upped to 10 & change from 8.5, did 
the shape of the bowl in the head change or just the pistons? (in other 
words, does the NF alter C/R when placed on the KX?)

Anyone know if the NF could work on a WE block?  Do the passages match?   
Seems to me it would it be a bad idea to have 1.5mm of head gasket exposed 
to the combusion chamber...right?

Thanks for any input,
Alan

'83 CGT
'85 CGT turbo project
'86 4kcsq

http://www.geocities.com/audikramer
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