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Re: 57 hemi 3 speed auto 59

From: Hank Dozier
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Date: May 27, 2003


Roger...There were more than one thickness trans adaptor for the hemis (and polys). The 1955 DeSoto used a thin adaptor (about 7/8" thick), and the 1957 hemis used a thicker (about 1 1/8" thick) adaptor. I think the bellhousing was matched with the adaptor. I don't know yet if you can put a 1957-up A466 Torqueflite to a thin adaptor (for the starter engagement) with a 1956 torque converter and a 1956 bellhousing and have it fit, but it should, theoretically. A 1957 torque converter would need the thick adaptor and starter for correct engagement, plus the 1957 bellhousing. I have a 1957-up hemi Torqueflite, and both a thin and thick adaptor, plus the 1957 converter and a 1956 Powerflite watercooled converter and bellhousing. In the future I had planned to match these up and make the stackup measurements. Maybe someone else out there has already done this and can give definitive answers to the about scenarios?


Last changed: July 19, 2018