Select the Top Category Porsche Motorsport Parts EBS Racing has been exported in Porsche parts. It produces tools, machine shop services and can give expert advice for any Porsche project you may have. Head studs clasp your head and block together. As you can gain more than your engine was planned to hold from the factory, the head, and the block pushes apart from each other, stretching the factory bolts and leading to various failures. Porsche motorsport parts are stronger and are designed to keep your race engine together under any condition. The factory fasteners were also not prepared to be reused. Every time you turn a fastener, it stretches to perform the proper clamping force. If the fasteners stretch too far, they will no longer provide the needed clamping force and can lead to engine collapse When you take your factory engine separately to erect it into your race engine, throw out your used factory main bolts and switch to a brand new set of Porsche motorsport parts. We have seen heads lift and blow head gaskets, coerce the cooling system, and worse. ARP Head Studs are a very low price part that couldn’t be more important to your engine build. Consider them a must.