left mount 340/360

recently I went to the local kragen auto for a left motor mount.My swinger came with a 318 like most. the 360 engine was ready to drop except the left mount.anyway i ordered the mount got it the next day .It was the wrong mount so i went back and told them it was not the right mount WARNING THEY (kragen) list a 340 mount but when you get it is a 318 mount next time I will wait for monday and go to napa