Rover v8, late to early drive gear swap???

[stroprock]

Is it possible to swap the drive gears from a later slot drive type distributor drive gear to an early blade type for P6 engine use? The distributor in question is a secondhand Mallory dual point non-vac advance P/N 2564301. I thought these all came with the short blade type drives as standard to fit Buick 215 V8's.

Here's a picture:

[DaveEFI]

The Mallory Unilite I bought came with no gear fitted at all. Had to drill the hole for the roll pin.

ISTR the gears can be swapped .