Quote:
Originally Posted by NeighborsComplaint
How is a block automatic trans specific? Isn’t the crankshaft pilot bearing the only difference? I thought pre-1973 blocks had auto/manual interchangeable bell housing bolt patterns and cast-in bosses for the z-bar linkage.
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It's specific once the pick code is stamp onto it. It could still be used as a 4 speed block, but was originally built for an automatic.