56's have more low end torque. Yes the 49 cranks will fit a 56 block. The 56 should bolt up to the mid but you'll need the exhaust and powerhead adapter plate for the 56 cube.
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56's have more low end torque. Yes the 49 cranks will fit a 56 block. The 56 should bolt up to the mid but you'll need the exhaust and powerhead adapter plate for the 56 cube.