I have both cores. I just don’t know if I want to buy new or work with the ones I have. My luck they test fine and later begin to leak. It’s a lot of work to remove them.
Yes a complete deluxe gasket kit , found a N.OS. motor an original model ,,and a N.O.S. temp probe , as you said its a lot of work to remove , my project is stripped down an good time for it
