BSA 500/557/600cc Big End Bearing
S.V. 500ccm
1927-31, S27/S28/S29/S30-9/S31-7
O.H.V 500ccm
1927-32, S27/S28/S29/S30-12/S30-13/S30-19/S31-9/S31-10/S32-8/ Sloping and Vertical Engines
SV 557ccm
1925-31, H25/H26/H27/H28/H29/H30-8/H31-8
1932-33, H32-9/H33-10
OHV 600ccm
1934-36, M34-12/M35-10/M36-10
Some of these engines were fitted with bearings ref. B9
The dimensions are as per last picture
conrod Numbers: 24-1599, 24-281, 24-280, 24-1588