Is it possible to use a 029 cylinder in a 028?

[WickhamWood]

Sorry, I did not see how to delete or change my subject line. I have jumbled my question. I am actually trying to put a 029 cylinder into a 028 case. Is this possible?

 

[computeruser]

No. One is clamshell. One is not.

 

[WickhamWood]

That is what I was looking to find out. Thank you for your help!