Quote:
I'd just start another thread on that and I'd bet some of the top experts will comment on that! Just a hunch but they may tell you .040 is tight for BB and .055 may be the limit... Ask them though!
I am not an expert, but don't forget with an aluminum block and heads, you will get .010" growth, so the quench distance will grow as well...
You should have .061" after all ???? 
Good luck on the dyno!
Arnie
67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...)
70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.
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