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  1. Swapping sb 350 to bb 454

    Engine
    I'm building a bb 454 to replace the original sb 350. Anyone have advice on do's and don't's? I have a 1969 convertable z11, 4spd. New F&R springs last summer. Front rakes higher than rear now. New engine will have aluminum heads and intake. Should only be about 70 lbs heavier. Will put in new...
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