Pretty sure the truck heads with 21T casting that are mentioned in the letter on page 1 are side-valve heads (21T heads were fitted to '42 Ford Trucks), and the Ardun's were added later on.
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Type: Posts; User: SimonSez
Pretty sure the truck heads with 21T casting that are mentioned in the letter on page 1 are side-valve heads (21T heads were fitted to '42 Ford Trucks), and the Ardun's were added later on.
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