Recent content by Brian101MH

  1. M

    Ford 640

    previous message error, should have read ford 640
  2. B

    compression ratio

    I"m thinking 10 or 12 but not sure. The valves are in the block, I dont want to mill head and hurt the lift. Thinking either a hi comp piston or filling the head (compression chamber) to raise the ratio.
  3. B

    compression ratio

    This is for the tractor pullers out there. At 2800 RPM"s flat head 6, what compression ratio should i shoot for this winter during our rebuild ? Right now we are at about 6:1 . I understand the higher the compression ratio the more power, but at some point I"m sure its to much at that RPM...
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