Hi Clive.. Big Journal Conrod Eye Dimensions, Published in my 1987 Glacier Bearing Catalogue
Standard crank journal 1.6865/1.6870"..........42.837/42.850 mm
Big End Eye 1.8435/1.8440"...........46.825/46.838 mm
Bearing Shell thickness 0.078"....1.98mm
Bearing shell width 0.705".......17.91mm
Glacier are now owned by someone else, but if you can find new old stock the catalogue numbers are
B2033LC Steel Shells, copper-lead lined, with lead-tin overlay
B2046M Steel Shells, White metal Lined.
They used to be available in 10, 20,30, 40 thou undersizes. The two variants are interchangeable, the only difference being the bearing material.
Checking the rods is simple with a suitable measuring. If ovality is present. engine reconditioners can reclaim the rod by removing material from the mating surfaces, reassembling cap and rod, then reboring the eye back to original size.
Have a look at the Glyco Bearing Website, lots of interesting stuff about bearing materials and crank grinding.
Keep Spannering, Swarfy.