http://garage.grumpysperformance.co...402-bbc-with-a-4-454-crank-or-even-4-25.2165/
these threads might help
http://garage.grumpysperformance.co...n-chamber-big-block-heads-and-casting-s.3960/
http://garage.grumpysperformance.co...7-bbc-cylinder-head-choice-and-options.13247/
http://garage.grumpysperformance.com/index.php?threads/sources-of-bbc-info.752/
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