We're working to restore a 1952 NVHIS-1486, and cannot find cylinder head gaskets anywhere. Note these are not the same as the V1710/V28 head gaskets. Original Part # for the gasket is 20586, which was superseded by 106608 and 139798. We'd be happy with any gasket version. Need a full set (4). Upper End Kits would be even better!
If all else fails, we'll look to a gasket maker like GasketsToGo or similar to make reproductions for us, but prefer to avoid it.
If you have any leads, we'd appreciate it!!