Don't know if there is an adpter made for the mopar six but I installed one in a '38 Dodge six and wrote an article on it that came out in the 12 port news Mar/Apr 2000 issue. Drove the '38 Dodge bus.cpe. to Detroit for the Inliners Conv. and it made an excellant trip with gas mileage in the mid 20ies and ran anywhere from 55 to 75 mph. Its a great additions to the L head six.