Crankshaft swap

The WD45 crank has a 1/2" longer stroke. It will fit, but you should have pistons to match; otherwise your compression may be really high. Or even physical interference might result. If you are lucky, you might have low-octane pistons in your WC; then the compression with longer stroke might be OK for regular gas.
 
Should add that I have heard that some WC/WD blocks might need a bit of grinding to get clearance for the crankshaft to work. Nothing major, though.
 

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