ApplicationCompatible for Plymouth models1966-1973 with 273-318 engine compatible for Dodge Truck 1966-1973 with 273-318 engine (Please compare your carburetor against pictures to ensure you will get the right item.)SpecificationBolt Hole Spacing Length Width:82.2mm×47.5mm(Center To Center)Intake Side Inner Diameter：36.5mm（two same）Choke Air Horn Outer Diameter：66mmCondition: 100% Brand New Material: heavy duty zinc alloy Instructions: not included Accessories: You will get exactly as shown in the picture abovePackage Including1x carburetorgasket Notice - The oil channels of carburetors will be blocked without cleaning.Please clean up the oil channels and air filters as well as use the clean fuel before installing the carburetors. - Professional installation is highly recommended (No Instruction Included) - For any needs please contact us.