59* R3 Help

John's block looks like a earlier version, the reason I say that would be the r3 cast on the left side of the block and the extra head bolt holes. Oldmanmopars also has the lifter valley closed In, the newer 59 degree resto blocks had an open valley more like a stock block and did not have the r3 cast on the left front, those changes seemed to happen around the time they quit painting the blocks orange.