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#12
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Yep
the 400 block and swap the #64 Heads (87cc) would be a great low octane combo. If the #12 heads were factory on the 70 400 block -it will likely be a 4Bolt Main 400 block. (WT or WS or YZ block code) The #46 heads from the 350 would be great on the 455 that 455 should also be a 4Bolt Main block |
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