ARP High Boost stud bolt Kit cylinder head suitable suitable for BMW N54B30 x35i ARP 21bmw160 - сервиз

Special stud bolt kit from ARP and BAR-TEK® Motorsport for the cylinder head for your BMW 3.0L 24V (N54) such as e. g. in the 135i, 335i and many more. Here 11 mm bolts are used. This is the only way to ensure that the bolts can withstand boost pressure over 2 bar without any problems. This kit is a upgrade to our 21bmw061 kit, now with 14x M11 bolts. This requires the four outer 9mm holes in the engine block to be drilled and tapped to increase their size to 11mm holes. This ensures that all holes in the engine block are the same size and can accommodate all 14x 11 mm bolts. By using M11 bolts at all positions, an even distribution of force on the surface of the cylinder head gasket is achieved.Includes: 14x 11 mm stud bolt, 14x washers and 14x nuts. High-performance bolts are made of high-strength and heat-treated 8740 chrome-molybdenum forged steel and are therefore ideal for use in racing engines. Thanks to the most advanced manufacturing processes, our block studs achieve maximum strength Tensile strength of 200,000 psi (13.8t/cm²) Perfectly rounded and straight studs for first-class installation Ten times stronger J-threads than standard bolts due to thread cutting after hardening Harder, more durable, more stable and better processed than standard products Absolute quality product for professional use Reusable Included in delivery: M11 bolt Tightening torques: M11 bolt: 110 Nm in 3 steps (Image similar)