12x stud bolts Dilavar bolts for PORSCHE 911 G SC 930 964 993
Very good workmanship quality
Description: This set of 24 stud screws is for professionally attaching the cylinder head to the cylinders.
The bolts are the reinforced version "DILAVAR".
From 1974 onwards, Porsche only used aluminum cylinders. Since aluminum has a higher coefficient of thermal expansion, the stud bolts were permanently exposed to high levels of expansion. The high load meant that the threads of the bolts were often stripped or they completely failed and broke. From the Carrera 3.2 onwards, stronger Dilavar bolts were installed in the engines, which solved the problem. When overhauling your engine, we recommend replacing the stud bolts with Dilavar bolts to increase the longevity of your engine.
In addition to the stud bolts, you can also get the washers and cylinder head nuts for the air-cooled Porsche.
partworks GmbH is a German company that specializes in reverse engineering and the distribution of spare parts for Porsche. Particular emphasis is placed on high quality and excellent service. More than 130,000 car fans worldwide are already satisfied customers of the Paderborn-based company. As a specialist company for classic car spare parts, we are aware of the quality requirements of our customers. Therefore, when it comes to subsequent developments, you can be sure that the requirements are very close to the original and in some cases even exceed them. With our own engineering department and internal testing, we can ensure the reliability of our products. Last but not least, our DIN ISO 9001 certified quality management confirms the thoroughness of our work. If you see the manufacturer information partworks, it means either an in-house development or an item from the original manufacturer (OE quality). Original equipment manufacturers are those manufacturers who have supplied the original product to the vehicle manufacturer but cannot be active in free trade under their own brand.