Question for blower motor folks
 

I was doing some shop cleaning & ran across a couple of these blowers. I believe they are from 8-92's....I'm wondering if there is a manifold for these to be installed on a gas engine? I do know that the mounting is different than a 6 or 8 71 series blower....
If anyone knows if & who makes a manifold for these I would appreciate the info. I am looking to get rid of them, & I would hate to just scrap them if they can be used, I mean they are brand new, but I just don't need them sitting around anymore...