Olderthanme wrote:
Maxima N47 (A.K.A. MN-47)
Comes on the 1981-1984 Maximas that are gas powered.
Outside can be easily identified by the N47 marking AND a threaded hole right behind the #5 spark plug.
The MN-47 will NOT work on a L24 block without eyebrowing the bores. A L26 block can be substituted since it is IDENTICAL to an L24 block but with eyebrowed bores.
My 240z, has a P30 block and a MN47, and no need to eyebrowing the bore... I just remove the old Z n47 and put the mn47, use 91 octane gas and the car runs better whit this setup.. I really dont know why it works...