Thread: New block
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Old 05-11-2017, 04:36 PM   #93
rotorwrench
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Default Re: New block

The valve angles changed in the post war production with the 59 series. It may have happened during the war but I'd bet it was with the tool up for the 59A in 1945. As far as changes are concerned, Ford made sure that tooling for relieving the chambers around the valves was available to the dealers. This way the prewar heads could be used on the post war blocks. The tooling was just a small jig with a cutter tool.
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