5 x 4.75"
Yes. It will bolt right on.
4.75 bolt pattern.
NO - The 55 covers are for a 265 and are staggered bolt pattern where the 66 283 are straight across bolt pattern.
5 lug - 4.75'' spacing
43/4 X 5
No.
YES.
66 Impala bolt pattern is 5X4 3/4
5 X 4.75 or 5 X 4 3/4
5x4.75
Yes it will. It will bolt right in.
No. It will fit the 1966 and 1967 Chevelle only. A 1967 Skylark hood will fit if you can find one.