when reversing the water intake on top of an EJ20 T engine, are there any mods required or is it just a matter of turning the thing the other way around?

http://www.rjes.com/html/reversed_coolant_manifold.html 

http://www.rjes.com/ 

Also here but ej22 , the same I think

http://www.subaruvanagon.com/tom/Coolant%20Header.htm 



[ Edited on 14-6-2006 by mackaymanx ]

Just what I needed, thanks

Try this site too:

http://weidefamily.net/VANAGON/ 

Under Engine-I, Cooling. There's lots of informative stuff there.

HTH