Maximum diameter for original 1135 engines ( ES/EF `82-`86 ). 1100 engines `80-`83 require larger seat rings. If you want to get a lot of power out of your engine, there's no getting around bigger valves! Our larger stainless steel valves are made by renowned manufacturers from the US (KIBBLEWHITE/FERREA) and are made in one piece. They meet the most demanding requirements and are built in an aerodynamic design.
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KIBBLEWHITE
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