Sole provider of the elusive French Steel Flatheads and components

Bare Block Stage 1

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The perfect Ford-Mercury block! Outstanding casting quality thanks to modern foundry technology.

  • No cracks, no rust.
  • Stronger everywhere it needs to be with thicker decks and main bearing bulkheads and larger main-bearing caps.
  • Mains are aligned honed.
  • 3-3/16-inch standard bore.
  • 59AB-type bellhousing with 8BA refinements for improved coolant flow. Requires 1938-1948 oil pan.
  • Drilled and tapped to accept 8BA or truck waterpumps.
  • Drilled and tapped to accept either early (center outlet) or late (forward outlet) heads.
  • Factory relieved (won’t accept Ardun heads).
  • Bellhousing CNC-machined to fit Ford firewalls without modification.
  • Gasket set is included.
  • Long center head bolts (required) and rear main seal retainer are included.
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Bosses and casting numbers and pads for military applications will not fit most Ford passenger car applications without firewall modifications.

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SF Flathead blocks are precision milled to remove the unsightly “lumps.” Only a pad remains that carries a SF Flatheads serial number.
Stop searching for a savable old Henry lump. This strong, high-nickel casting is the last flathead block you’ll ever need!

In stock and ready to ship. Truck shipping required. Rate quoted at order.