Linus Tremaine
04-21-2012, 06:46 PM
All,
I have two land rovers, both with the 2.25 diesel engine. My 109 needs to have the head serviced including valve guides, valve grind, valve seals etc. My 88 has what I believe is a 2.5NA head on it. It has HRC 1474 cast into the head. Before rebuilding my 2.25 head on the 109, I have considered that there might be some benefit to the installation of a 2.5NA head on a 2.25 block- I assume that it was done for a reason. So, my question is, what are the benefits, if any, and should I just buy a 2.5 head to put on my 109 so that it can have the same "upgrade" as the 88?
http://www.series2club.info/forum/Themes/green_theme/images/icons/modify_inline.gif
I have two land rovers, both with the 2.25 diesel engine. My 109 needs to have the head serviced including valve guides, valve grind, valve seals etc. My 88 has what I believe is a 2.5NA head on it. It has HRC 1474 cast into the head. Before rebuilding my 2.25 head on the 109, I have considered that there might be some benefit to the installation of a 2.5NA head on a 2.25 block- I assume that it was done for a reason. So, my question is, what are the benefits, if any, and should I just buy a 2.5 head to put on my 109 so that it can have the same "upgrade" as the 88?
http://www.series2club.info/forum/Themes/green_theme/images/icons/modify_inline.gif