I do not think so. The plastic impeller with metal insert is from earlier cars and some 6 cylinders up to 68. I have this one for a Desoto, but no way a 2843290 casting was original OEM in the early 60s. It was rebuilt to the Desoto spec probably for supply needs. The housing fit I think 57 and up. Just different style casting.

IMG_1064.JPGIMG_1065.JPG