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400" valve relief, 3 5/16" bore 4" stroke = 9 : 1 CR, 3 5/16" bore 3 3/4" stroke = 8.6 : 1 CR Offenhauser 1068-400 1939-48 Ford Flathead Finned Aluminum Heads Sku # 5601068 Mfr. Part # 1068-400 Condition New Brand Offenhauser Sold Pair Details Info 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 compress...

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