H And H Builds A Flathead For A Knucklehead Merc Block
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8. FoMoCo did some odd things over the years, but typically always differentiated Ford and Merc blocks. Both feature raised intake surfaces (one-year only—imagine the additional tooling costs accrued!). The discrete differences can be found in the shape of the water passages: the Merc block has a round center passage. View Related Article
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