SL6 radiator married to 318, can it be done...

Hey guys:

Back with another unusual question...

I'm moving along with my '71 Valiant project and I encountered something else I wasn't expecting.

This is a Slant car converted to a V8 using all factory parts from another car. My issue is, I have a good six cylinder radiator that I would like to use temporarily while I iron out any potential bugs(like whether it's going to blow up or not).

However, as lots know the outlet(I think) is smaller on the six rad. I'm curious if anyone has made up a workaround to get the hoses connected to the radiator. This is a non-AC car with the small core opening, so this slant with AC radiator would work fine for my application.

Thank you.