[Marvin]

I think you are correct, the 427 crossbolted block is stronger with the stock crank it would have shorter stroke larger bore and tolerate much higher rev's.

My 428 realy runs , but i have it chiped at 6000, builder said could go to 7500 for short periods but no need, plenty of power and i love the torque.

I still would like a 427 alum block engine, but these iron engines are no too heavy with the alum heads, flywheel etc.