I know that with a 350 ci block that is 030 overbore, your crankshaft throw length has to be 3.75" to make 383 ci. My question is: is it theoretically better to have a bigger crank (like from a 396/402) ground down, or to line-bore the block's main journals to accomodate the larger crank? Also; what vehicles had the 396/402 installed as OE? Let's hear it, crankmeisters! Brian 'Chili' G.