The 187 pan uses a pickup that is almost the same as the 70-71 hemi/6pk pan , it's just a little longer and can easily be made to work , add a windage tray and the 2 gaskets and and bend it a tad and you would be all set .
I saw your thread when i did a search but that dosnt answer my question. ide like to see a pic or a description with measurements to compare to the ones i have.