1960 Dodge Polara Engine: 6.3L V8;FuelSystem: 2x4BBL; 4 Bore Gasket; Individual throttle bores;. 1961 Dodge Polara Engine: 6.3L V8;FuelSystem: 2x4BBL; 4 Bore Gasket; Individual throttle bores;. 1961 Dodge Polara Engine: 6.7L V8;FuelSystem: 2x4BBL; 4 Bore Gasket; Individual throttle bores;.