I have a 64 Dart GT with a 340 and a stock motor mount on the passenger side but on the DRIVERS SIDE I HAVE JUST THE METAL PART OF THE PICK UP TRUCK MOUNT !!! ONE SOLID MOUNT!!! NO I REPEAT NO RUBBER MOUNT ON THE DRIVER SIDE! BOLTS IN JUST LIKE IT GREW THERE FROM THE FACTORY. It would be very easy to recommend that if you were to put a HI-PO 318 or 273 into one of these cars the solid mount would seem to be very practical just use a 318 drivers side mount.