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  1. 3

    Will this work?

    What causes this wear on each lobe?
  2. 3

    Notching cylinder for 4” merc crank in a 221

    Notching cylinder for 4” merc crank in a 221 I have a 40 221 24 stud block that’s has been bored 3-3/16”. Plan to use 4” Merc crank. I have gathered up almost everything I need for assembly. It was noted there might be interference between the rods and bottom of the cylinder. I would need...
  3. 3

    Building a 255 from a 221 block, help needed.

    Hi I’m helping a friend build a flat head. He does not do the interweb only has a flip phone and doesn’t do texts. We are starting with a 1940 block 221, 24 stud engine. It has been bored to standard 239 with no problems. Plan to use 4” mercury crank from an 8BA. Flywheel from a 59ab. The...
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