Am I reading this correctly for my 1959 engine. The number one (main bearing) should have clearance of between .0008 and .0024 and the ID of the #1 bearing shell should be 2.6856 ?
Those diagrams and engineering specifications are from the
GM Heritage Info Kits. The images are from the '54 and '56 Chevrolet pubs. The specs are for stock/standard. If your crank has been ground under-size the bearing shells will have a larger ID. The clearances are open for debate - perhaps generous on the high end (but close enough for factory or shop work back in those days).
