I've always wanted to learn more about the differences myself. I, too, have heard that the 7115 was for a 427. But the L72s in COPOs use the 6223 crank. Why? What is the real difference? I have never had a 7115 crank to compare.
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69 SS/RS 396 M20 X22 Nor 12B,72B,712 bought 1979
FULL OWNER HISTORY
69 Dick Harrell tribute Day II 427 M20 4.10 X11 76 orig pnt, 711
67 Super Stock 302 Camaro re-creation
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