1979 f150 351m to straight 6 swap?

Discussion in 'Ford 4x4' started by Flogrown_352, Aug 23, 2017.

  1. Flogrown_352

    Flogrown_352 New Member

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    I got a 1979 f150 with the 351m and c6 trans, I'm just out of high school and wondering what mileage gains I could make by swapping my 5.8 for a 300 straight 6, and if the 300 would bolt up to the trans.
     
  2. rabbiporkchop

    rabbiporkchop Well-Known Member

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    Different bellhousing bolt patterns between the two. It would be much simpler just to find a truck with the six cylinder and keep the transmission that goes to that engine.