hartsel Posted September 25, 2011 Share Posted September 25, 2011 The mn47 head as its refered to by z car owners seems very hard to find. I would love to find one of these heads and build my next engine around it. i wanna go high compression with that e85 that is so avialable around my area. does anyone have these sitting around, or is there a great place to find them. Quote Link to comment Share on other sites More sharing options...
az240z Posted September 25, 2011 Share Posted September 25, 2011 I have one rebuilt. Check my craigslist ad:mn47 I also have it listed on this forum:My link Quote Link to comment Share on other sites More sharing options...
hartsel Posted September 25, 2011 Author Share Posted September 25, 2011 those things really have circle ports...that stinks. i already have the square port header Quote Link to comment Share on other sites More sharing options...
tyler031734 Posted September 25, 2011 Share Posted September 25, 2011 (edited) If I remember correctly, they also have smaller valves in stock form as they come off of a 2.4L motor But can be made bigger at the time of a rebuild. Edited September 25, 2011 by tyler031734 Quote Link to comment Share on other sites More sharing options...
roger280zx Posted September 26, 2011 Share Posted September 26, 2011 You CAN run sqaure port headers on round exhaust ports. Look it up on this forum, it has been done many times. I have 3-4 of these heads laying around if you want one. $200 plus shipping, don't worry about paypal fees. Quote Link to comment Share on other sites More sharing options...
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