TwinTurbo.NET: Nissan 300ZX forum - The only thing to look out for is that the intake ports have
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Subject The only thing to look out for is that the intake ports have
     
Posted by black300zx on April 23, 2012 at 11:55 AM
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In Reply To Implications of running TT heads on an NA motor? posted by Barry (NJ) on April 23, 2012 at 11:44 AM
     
Message the same shape. When the lower manifolds changed to accomodate the new style injectors, the intake port shapes also changed.

As long as the heads are meant for the same style injectors, you can swap them right in. The combustion chambers are the same volume. The compression change between na/tt comes from the pistons.

TT heads also flow better, so your friend might gain a little performance as a side benefit.

     
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