hey guys just had a question that ive been wondering for a while now.  i have several heads here for the LT 250 and i was wondering whch of these 2 styles is better and if anyone knows the cc for each one? thanks

Go on google and look up instructions on ccing a head and go from there.

these are both oem.  never touched. if you look on the tops of the heads you can see one is E1 the other style is E2 the one with the smaller dome (E2) is off of a 87 if i can remember correctly and the other(E1) is 88-92.  i have several sets of both styles and always wondered what the cc difference was but could never find any specs. ill have to research on how to measure them myself. i thought there might be someone on here that would know off hand the differences. thanks for the the feedback 

I heard wider dome more topend smaller dome width more low end an midrange. Maybee that how they done it to achieve same goal   from large intake to small. To make them run close to the same with dome width. I put 87 e1 on my 91 had it widen for bore size and it had alot more low end and midrange then before with e2 wider dome.