I'm having discussions with a rod manufacturer on offering some 6.700-7.000" FE journal connecting rods made. This would open up a lot of options for lighter weight pistons on standard FE crankshafts, such as the 3.500" stroke, 3.780", 3.980", etc. No crankshaft modifications needed.
Any interest? I think it would be a lot easier to get done with a 5-10 set order.