WORLD OF MOTORSPORT ZA

5.1.4.1 Limitation VW Powered Vehicles – The use of cylinder heads from different models of VW powered vehicles is permitted. The valves, valve springs, retainers and cam followers shall be used in standard form to the specific head utilised. Cylinder heads with inlet valves exceeding 38mm and exhaust valves exceeding 33mm may not be utilised. ................
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