I have a 1964 Buick Skylark and was gonna fix it up but I checked the numbers on the casting its a 350 1382201-L, I am getting different years 1968-1970, 1970-71, 1970, before I order any parts just wanna know exactly what years or year it is or if it changed much between any of those years and it doesn't matter any part should work with it if I ordered using any year between 1968-1970. thanks for any help, new here might be posting here often.