Designed as a direct replacement for factory M159 head bolts, our ARP Head Studs are one of the most popular upgrades for the M159 Engine. These 11mm ARP studs are made of 625 grade Inconel and are equipped to handle extreme cylinder pressures. Paired with many of our other popular M159 engine upgrades such as SLS Black Series Buckets, we make it an easy choice for you. Kit Includes: Twenty ARP 625 Grade Inconel Head Studs Twenty ARP Head Stud Washers Twenty ARP Head Stud 12-Pt Nuts Installation requires silicone sealant.make-mercedes-benz,make-mercedes-benz-model-sls-amg,make-mercedes-benz-model-sls-amg-year-2011,make-mercedes-benz-model-sls-amg-year-2011-type-m156-6-2l-v8,make-mercedes-benz-model-sls-amg-year-2012,make-mercedes-benz-model-sls-amg-year-2012-type-m156-6-2l-v8,make-mercedes-benz-model-sls-amg-year-2013,make-mercedes-benz-model-sls-amg-year-2013-type-m156-6-2l-v8,make-mercedes-benz-model-sls-amg-year-2014,make-mercedes-benz-model-sls-amg-year-2014-type-m156-6-2l-v8,make-mercedes-benz-model-sls-black-series,make-mercedes-benz-model-sls-black-series-year-2014,make-mercedes-benz-model-sls-black-series-year-2014-type-m156-6-2l-v8
