I found this site to be a big help when I was trying to get positive ID of my '74 CJ5's motor/wwwthreads_images/icons/cool.gif(turned out to be a 232, and yes, it has a one piece exhaust manifold)
http://engineexchange.com/amcshortblocks.htm
good luck/wwwthreads_images/icons/smile.gif
jimbo
'74 CJ5,232 I6,T15,Dana 30&44
http://engineexchange.com/amcshortblocks.htm
good luck/wwwthreads_images/icons/smile.gif
jimbo
'74 CJ5,232 I6,T15,Dana 30&44