NORS Main Bearing Set at .030 by Vandervell for Ford FE engines 1958 - 1964.  Fits 330, 332, 352, 361, 390, 391, 406, and 427 engines.  Like Federal Mogul PN 4020M, similar to Federal Mogul PN 4261M but with smaller OD thrust surfaces.  Vandervell PN VP 809.030.  These are full groove high performance tri-metal bearings in original packaging.