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Flow bench designed and tested for maximum air flow on our Supaflow 110 flowbench. This head uses the very latest development in port design with high roof inlet ports and negative radius valve guide boss removal.
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The main significant difference with this specification is that we offset the centre line of the exhaust valve which in turn enables us to fit a larger exhaust valve, ideal for race engines. This specification now comes with a 31.0mm exhaust and a 37.0mm inlet valve.
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This is our ever famous 38.0mm 31.0mm Series 6 full race cylinder head. We have been producing this specification for many years now with great success. It is used in all forms of motorsport all around the world and gives unbeatable power when fitted to the correct engine configuration.
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