There is, the 440-4 and 440-6 in 70 and 71 used the hemi pan and had a 3/8" pickup. The pickup tube was available , now ?

I used a moroso 1/2" pickup threaded end, its a separate part welded to the tube, to neck down to the 3/8 pickup tube for the original A body 383 pan, the block had already been drilled when I was building it for a different application.