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  1. R

    mv446 to 7.3 bolt up

    1979 s1900/f1924model with a 5speed and a 4 speed aux trans. behind a mv446. Any ez power upgrades for the446? or swap to diesel? dt466? 7.3?
  2. R

    mv446 to 7.3 bolt up

    will a 79 5+4 bolt up to a 7.3 powerstroke? Is there more than one iH 7.3?
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