Product Summary

Bare Cylinder Head Style, Aluminum, Natural

  • Nothing beats a full-dress flathead for beauty and these Offy finned aluminum heads are just the ticket
  • Finned design aids in cooling versus stock cast iron heads
  • Enlarged water jackets take the cooling capability to even higher levels
  • .400" valve relief accommodates high lift cams
  • 9:1 compression with 3-5/16" bore and 4" stroke or 8.6:1 compression with 3-5/16" bore and 3-3/4" stroke

Key Specs

MFG. Part #1069-400
Cylinder Head StyleBare
Material TypeAluminum

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These Offy flathead Ford heads are finned for high heat dissipation, bigger water capacity for "built" engines and everybody knows, nothing beats a full-dress flathead for beauty! Heads have a .400" valve relief.

3-5/16" bore, 4" stroke = 9:1 compression ratio
3-5/16" bore, 3 3/4" stroke = 8.6:1 compression ratio.

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


MFG. Part #1069-400
Cylinder Head StyleBare
Material TypeAluminum
Spark Plug StyleStraight
Exhaust Port ShapeRound
Sold in QuantityPair