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Discussion Starter · #1 ·
Bob Hanvey's Page he discusses the N47 Maxima head which supposedly has the squished combustion camber of a P79, but with a much smaller total volume. Has anyone run this head on an L24 or L26? If so, what results, and what compression ratio can I expect if I run this head on an L26 in my 260?
 

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Discussion Starter · #4 ·
> The N47 is a 280Z head with the same
> combustion chamber shape as a N42, the only
> difference is the N47 has round exhaust
> ports with liners and the N42 has square
> ports without liners. The head your talking
> about is the P81 I believe.
I can verify from personal experience that the early 80's Maxima's had a head that is marked N47 In fact, ALL of the many early 80's Maxima's that I have seen in the U-Pull it yards have this N47 head. I have no idea what the combustion chambers look like, or what is the volume of the combustion chambers, but that is what I want to find out. What I am trying to find out is whether there is a head I can slap on my L26 without shaving, which will give me somewhere between 9 and 10.5:1 combustion ratio.
 
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