Will A1211 or A1226 lower casing work with an A1150 board?

Hi! I've got an A1150 with a messed up lower casing, and I'm wondering if I can replacing the lower casing with with A1211 or A1226 lower casings that I have sitting around. I assume probably not, because A1150 is Core Duo and A1211 and A1126 are Core 2 Duo, and I imagine there would probably be differences in the lower casings between the different processor types, but I thought I'd ask and see if anyone has experience with this before I start pulling things apart. Thanks!