Which engines come stock with a universal motor mount?

I don't know how it applies to your oval tubes, but I'm thinking that many kits are now shipping standard with the big motor mount in front
I queried luckyyearlybird last week as to whether his replacements engines had the big front mount and the answer I got back was "Yes, they do have the large mount"

I've been thinking- probably if you got a china girl with a large motor mount-

and then replaced the studs with longer studs- i.e. a set of back mount studs-

it may just bolt the regular clamp onto the bottom of the oval tube with no other special mounting technique or hardware.