The Lincoln Mercury Microfiche lists B8E 8526 & 7-A as being 1.631" OD for block bores of 1.620/1.625" diameter for the 1960-64 383/430. It also lists
C4VY-8526 & 7-A as being 1.531" OD for block bores of 1.520/1.525" diameter for the same 1960-64 383/430.
B8E 8526 & 7 is listed in the Lincoln Book for the 58-9 430 no dimensions given.
C4VY 8526/7-B is listed for 1965-67 430/462 for 1.520/1.525" block openings, but it is available in both brass and steel (perhaps the B suffix is for the brass)
My presumption then is that the earlier blocks had the larger bores and sometime in late 59 there was a change to the smaller bore. It is still best to measure!
Carl
C4VY-8526 & 7-A as being 1.531" OD for block bores of 1.520/1.525" diameter for the same 1960-64 383/430.
B8E 8526 & 7 is listed in the Lincoln Book for the 58-9 430 no dimensions given.
C4VY 8526/7-B is listed for 1965-67 430/462 for 1.520/1.525" block openings, but it is available in both brass and steel (perhaps the B suffix is for the brass)
My presumption then is that the earlier blocks had the larger bores and sometime in late 59 there was a change to the smaller bore. It is still best to measure!
Carl
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