Straight Slant Six Thermostat Housing Question

All these have the same gasket so perhaps another application has a straight housing
CADILLAC 1963-1985
CHRYSLER 1979-1989
DODGE 1960-2003
FARGO 1962-1972
JEEP 1995-1997
OLDSMOBILE 1958-1963
PLYMOUTH 1960-1989

Cadillac housing