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Be prepared to spend some extra $$ on getting that crank to balance and cutting the counterweights for clearance. I hope yours works out better than mine did.

To get clearance of the counterweights in the low deck block, there are several ways.
1) lathe turn (round) the counterweights to about 7.25" dia, keep bobweight ~2350g
2) put large bevels on the edges of the counterweights
3) grind the clearance in the block and leave the crank about 7.50" dia

The larger the bevels, the larger dia you can leave the counterweights. The front and rear (large) counterweights will fit at a larger dia than the inner (smaller) ones.