Try SCAT crankshafts, they pretty much make em all....They use a new technology called Cast Steel, which is much stronger than just cast, and for about $200.
1967 Firebird 400/4spd all numbers matching 1971 Camaro Pro ET Drag Car 1970 Camaro real Z-28 (needs everything) 1963 Impala 409 dual quad 4 spd 2003 Victory Vegas 2009 Pontiac G8 GT (My wife says I have a problem.....)