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4x4extreme 01-20-2002, 03:23 AM Have any of you guys put a 4.0 head on a 4.2(258) ? Do you guys know a web page that would tell you how to do it and what you have to modify ? Jaffer 01-20-2002, 06:08 AM http://monsterslayer.com/jeep/40Head/40Head.htm http://www.off-road.com/jeep/new/40conv.html http://homepage.mac.com/jefe/4to42.html :p 4x4extreme 01-20-2002, 12:05 PM Thanks that is what I was looking for 4x4extreme 01-22-2002, 12:54 AM When doing the conversion do you have to use the 4.0 intake or can you use the 4.2 intake ? YJ4LIFE 01-22-2002, 01:27 AM Originally posted by 4x4extreme When doing the conversion do you have to use the 4.0 intake or can you use the 4.2 intake ? either but I think you need the 4.0 exaust header/manifold 4x4extreme 01-22-2002, 02:07 AM Thanks that is what I thought but a few articles said you had to use a 4.0 intake | |