Many production cast iron and aluminum blocks suffer from a design weakness of cylinder stability by nature of poor support at the upper deck area. The manufacturing process of "cast in sleeves" provides for economy of scale in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes. Darton has engineered a superior patented solution by using a unique designed cylinder sleeve which when siamesed and nested, creates a solid deck of sleeve flanges held in tension, reinforcing the upper deck area and provides for individual replacement with what they call modular integrated deck (mid).
In addition, darton designs' manage and enhance water flow from block to head ...(choose a part on the right to read more)
Known as: lock ring a 6 / lock ring 6 / lock ring b 6 / lock ring a6 / lock ring m 6
Known as: lock ring a 6 brake 60 mm / lock ring a 6 din 127 phr / lock ring a 6.4
We suggest periodically checking your gas cap seal for fine cracks which produce fumes. If you replace the cap and the fumes persist, check the fuel filler neck, fuel lines, expansion tank and vent shut off valves. Oem (original equipment manufacturer) bayonet locking type fuel cap sourced in Germany to ensure quality, reliability and precise fitment. Sold individually. 1 necessary per car. Please note: please check the model fitment tab to ensure accurate fitment.
This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.