johnnyddn Posted July 28, 2015 Share Posted July 28, 2015 Hi, the cylinder head I have in my 280z took a crap. I'm seeing if anyone in the Las Vegas area has one for sale (preferably a P90) before I go to the junk yard and pull the beat up looking N47 head I found there. Quote Link to comment Share on other sites More sharing options...
NewZed Posted July 28, 2015 Share Posted July 28, 2015 P90 and N47 have different size combustion chambers. N47 gives a higher CR than P90. In case you were looking for a direct swap. P90 on dished pistons is the turbo CR. P90 on flat tops is stock. N47 on flat-tops is "performance". Quote Link to comment Share on other sites More sharing options...
johnnyddn Posted July 28, 2015 Author Share Posted July 28, 2015 I just figured if I was gonna go through the trouble, might as well get a P90 head because I would like to go boost in the future. Quote Link to comment Share on other sites More sharing options...
NewZed Posted July 28, 2015 Share Posted July 28, 2015 It will run on the lower CR, it's been onde. Just thought you should know. You saw my post on other possible effects though, right? If the head's corroded, other parts might be also. Corrosion is usually from running water without antifreeze. Quote Link to comment Share on other sites More sharing options...
88dangerdan Posted July 28, 2015 Share Posted July 28, 2015 PM sent Quote Link to comment Share on other sites More sharing options...
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