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The N47 (8/77-6/80)Z is considered to be not as desirable as the (81-83) P79 and P90 heads, due to exhaust liners and inferior combustion chamber design.

The (1981-83) N47 Maxima head is much different. First, it has heart-shaped combustion chambers like the P79/90. Second, it's combustion chambers are about 40CC, even smaller than the E31 & E88. The Maxima head also has exhaust liners.

I'm thinking about slapping an N47 Maxima head on my L24 for 9.5:1 compression, so I've been researching this a bit.

I am not thoroughly convinced that the exhaust liners are a bad thing, since no one has numbers to prove it.
 

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Discussion Starter #3
well, the N47 is what is on my 79zx, and I'll assume that it's the old style N47. I am not sure about the exhaust liners actually harming performance, as my ZX Screams pretty well.
 

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YEAH WHAT ABOUT IT

I WAS TOLD IF YOU SHAVE IT ITS AS GOOD AS THE P 90 OR P90 A NOT SURE WHICH ONE THATS WHAT NORM TOLD ME
 
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