Mopar Performance crankshaft
As my old fuzzy Mind remembers:
The specs that Mopar gave NHRA are
.45 Above (68 to 71) and .54 Below (72 to 73)
and that is what we have to live with in stock/superstock.
I rounded them out a few thousands for simplicity in explanation.
Of Course, when Larry Shepard submitted them to NHRA
he was optimistic on all the tolerances! The same with every
other spec that he submitted on the Mopar Engines (Cam/Heads/etc.).
GM and Ford were also optimistic as well for NHRA!