"They" say that some of the 4.0 heads will work without having to fill water passages and then some will have a leakage issue and need the holes filled. I do not know the difference in the 4.0 heads but it should be a point of caution. When I do the SX/4 I am going to have mine filled just to be sure. YMMV Wayne Wayne and Lisa, Bolton Landing, NY, http://web.vplp.net/~superglider/ 85 XJ Wagoneer Limited, 82 Eagle SX/4 66 Ambo 990 Wagon, AC, PS, PB, PW, Apollo Yellow woody 69 Ambo Coupe, 401, M12 83 Eagle Limited wagon On Fri, 8 Jul 2005 10:26:23 -0700 (PDT) <mail@xxxxxxxxxxxx> writes: > The guy I got the engine from is a Jeep freak and they > did that to his buddies CJ. Said it fit with no > problem and that 258 just screamed......Russ > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > > http://mail.yahoo.com > > > > >