What a strange little cylinder head, with the inlets between the cams! Yet it appears Abarth made a large number of these (50 cars at least for homologation). Possibly the relatively narrow bore spacing imposed by the Fiat 600 engine block, combined with the need for really big Webers, meant the carbs wouldn't fit side by side as in a conventional setup. In any case it means the plugs are well off to one side, not to mention inaccessible, and water piping is external.
Stay tuned, more to come.
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