K Kinney128 CB750 New member Messages 2 Reaction score 0 Points 1 Location Thornton, Colorado Aug 29, 2023 #1 Are the 1970 crank cases the same as the 1974 crank cases? CB750
dirtdigger Moderator Staff member Top Contributor Messages 3,779 Reaction score 280 Points 83 Location US Aug 30, 2023 #2 As long as it is post sand cast then the cases are the same.