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Re: Nissan twin cam race heads for A series, were they ever made?
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WOW!

That's the rear Nissan race hemi AY12 engine. The DOHC version (AZ12 engine) was never made


Great pictures i never seen details like those. Too bad they didn't get a picture of the combustion chambers

* 1973 Nissan works engine
* 160 horsepowers @ 8,800 rpm
* Single-cam engine
* overhead valve (pushrod engine)
* dual rocker arms

Similar to the Chrysler Hemi, except it doesn't appear to have top-down spark plugs but rather they are on the side?

At the bottom of this magazine article page is the design for the DOHC A12 -- buy it's only a drawing

Attach file:



jpg  Auto Technica 1982 no. 164 E64F0468.jpg (192.29 KB)
174_63da0f1011268.jpg 1442X2048 px

jpg  AY12 engine. The shape and size of the head cover are completely related E64F0467.jpg (91.24 KB)
174_63da14f829ef8.jpg 932X768 px

jpg  Crossflow OHV Head A12 E64F0430-1.jpg (79.36 KB)
174_63da159038437.jpg 1150X882 px

jpg  E64F0464.jpg (173.17 KB)
174_63da15e3201fb.jpg 1554X1536 px

jpg  Nissan Crossflow AY12 engine E64F0465.jpg (170.43 KB)
174_63da16048e0cc.jpg 1600X1243 px

Posted on: 2023/2/1 7:34
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Subject Poster Date
     Nissan twin cam race heads for A series, were they ever made? monimic 2023/1/26 1:18
       Re: Nissan twin cam race heads for A series, were they ever made? dattoman_1000 2023/1/27 9:48
         Re: Nissan twin cam race heads for A series, were they ever made? monimic 2023/1/27 12:56
           Re: Nissan twin cam race heads for A series, were they ever made? monimic 2023/1/30 5:18
             Re: Nissan twin cam race heads for A series, were they ever made? ddgonzal 2023/2/1 7:34
       Re: Nissan twin cam race heads for A series, were they ever made? monimic 2023/2/1 10:17
         Re: Nissan twin cam race heads for A series, were they ever made? clyons8 2023/2/1 11:48
       Re: Nissan twin cam race heads for A series, were they ever made? Rallytwit 2023/2/2 2:34
         Re: Nissan twin cam race heads for A series, were they ever made? ddgonzal 2023/2/2 9:38
           Re: Nissan twin cam race heads for A series, were they ever made? D 2023/2/21 11:53
             Re: Nissan twin cam race heads for A series, were they ever made? ddgonzal 2/14 19:08
       Re: Nissan twin cam race heads for A series, were they ever made? Davie 2023/5/22 8:06
         Re: Nissan twin cam race heads for A series, were they ever made? ddgonzal 2023/5/22 13:23
       Re: Nissan twin cam race heads for A series, were they ever made? sidedraught 2023/6/16 5:59




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