Offenhauser 1068 425, Ford Flathead V8 Cylinder Heads 1939-1948


These genuine Offenhauser 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 .425″ 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.

Fit 1939-1948 Ford Flathead Motors

• Extra heavy aluminum alloy construction.
• Precision cast with maximum rib design.
• Cooler running with more water capacity.
• More fin area for rapid heat dissipation.
• Water jackets close to critical heat points.
• Finest available for street, highway or competition use.
• Extremely popular because of superior workmanship and proven quality.

Out of stock


Cast Aluminum High Compression Ford Cylinder Heads

In the selection of a power head, do not be misled by high compression ratios. It is true, that if every power factor involved were 100% efficient, then the higher the compression ratio, the more power developed. However, where the engine is not custom made, it very often proves that a lower compression ratio will produce a higher overall efficiency. For special compression ratios, advise bore, stroke, and whether block is relieved.

Additional information

Weight 37 lbs



Offenhauser Intakes, Manifolds, Valve Covers, Heads, and More!

White Owl Speed is the newest distributor for Offenhauser. We have exclusive merchandise and parts that have not been available for 60 years! We are constantly listing new parts and making new inventory available so make sure you check back often! Offenhauser was established in 1946 by Fred C. Offenhauser and Fran Hernandez. All of Offenhauser's parts are cast and machined in California. All Offenhauser parts are forged using a hand-carved wooden pattern at Bell foundry in South Gate, California and machined at the Offenhauser Shop In Downtown Los Angeles. Offenhauser is one of the oldest premium automotive parts manufacturers in the world operating for over 70+ years continuously.


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