Hey all, just picked up a 70 CJ5 and the PO said it has a 231 in it. So, since I know they did not come with a 231, but came with the 225 dauntless I would like to figure out what year this engine is, if it is indeed a 231, if it is odd or even firing etc. I have tried searching and did not want to have to post the thread, but it seems like all the links to the earlycj5.com are dead now. I found some interesting threads on casting #'s etc, but they were all dead ends(none of the links work). The engine has a rochester dual jet Carb on it. Here is a picture of what I've got FWIW. Thanks for any help or info you can give me! Excited about tearing into this sucker!