The proprietary ARP materials used to make our VW and Porsche head studs, thru-bolts, and connecting rod bolts is about 33% stronger than the stock material, with a 220,000psi tensile strength and improved fatigue characteristics.

Use of ARP fasteners in your Porsche or VW will ensure that your engine will be assembled with the most accurate and even clamping load possible, and will maintain that spec for prolonged periods of operation.

Price includes 16 ARP 2000 head studs, 12 pt nuts, ground washers, and ARP assembly lube. ARP case-through bolts sold separately.

Application notes: We recommend replacing the stock head studs and upgrading to the ARP 2000 heads studs on engines larger than 2270cc or 150 horsepower or when using Nickies cylinders. We recommend torquing heads to stock torque specifications using the factory prescribed torquing method.