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!
@ this point I have no intention of building a big block so I really don't have to know the real answer, you didn't say on piston wall clearance so if they are loose and rock a lot than .051 may be fine I thought it was a simple question cause this is for the most part a big block thread ....
I thought it was a simple question cause this is for the most part a big block thread 
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