I believe it’s 83 . I have one in my 83 project.I also have a 044 block that’s a 4.1 Buick that I can’t find much info on . It has all the good stuff as the 291 block just different casting number
I believe it’s 83 . I have one in my 83 project.I also have a 044 block that’s a 4.1 Buick that I can’t find much info on . It has all the good stuff as the 291 block just different casting number