Up for sale is a brand new full set of Main Bearings. These are precision machined to meet or exceed O.E.M. specifications. These are available in Standard size, as well as .010, .020, & .030 undersizes. After purchasing the item, please contact us to let us know which size you need. These will fit the following:

1956 Nash series 50 Ambassador Special with 250ci V8 engine (3-1/2 inch bore diameter)

1957 Nash series 20 Rambler & series 80 Ambassador with 250ci V8 engine (3-1/2 inch bore diameter)

Control #: MBS 1780.size

Great part at a great price!

Each item is described to the best of our ability. However, we are not perfect and something may slip past us. Therefore, we provide one or more large photographs to add to the description in case we have missed something.