ARP Head Stud Kit for BMW 2.3L 4 Cylinder Engine Pro Race Engineering ARP Main Stud Kit for BMW M20 ARP BMW M30 Head Studs CDMSPORT ARP BMW M54 M52TU Head Stud Kit CDMSPORT. ARP Head Stud Kits BMW Fitment Part #: 201 4302 Overview The ARP Pro Series Head Stud Kits are precision engineered fastening solutions designed specifically for select BMW models from the early 1990s. These kits are intended for enthusiasts and professionals involved in engine building, restoration, or performance upgrades. Crafted to enhance the integrity of your engines cylinder head, they help ensure reliable sealing under high stress conditions, whether during spirited driving, tuning, or long term durability testing. Made from high strength materials, these head studs provide a secure and consistent clamping force that maintains proper head gasket sealing, reducing the risk of head gasket failure and improving overall engine reliability. Key Features Designed for high performance applications and demanding driving conditions, the ARP Head Stud Kits feature: Made from ARPs proprietary 2000 series alloy steel for exceptional strength and durability Precisely machined threads for consistent torque and clamping force Engineered to withstand thermal expansion and contraction during engine operation Corrosion resistant coating to ensure longevity and reliable performance over time Designed specifically for BMW 2. 0L & 2. 5L engines from the early 90s Includes all necessary hardware for a complete installation Construction & Design These head studs are manufactured from ARPs proprietary 2000 series alloy steel, known for its high tensile strength and resistance to fatigue. The precise machining and surface treatments ensure optimal fitment and consistent clamping force, critical for maintaining cylinder head integrity during high performance use. Installation & Fitment Installation requires proper torque procedures to achieve the recommended clamping force. Fitment should be verified against your specific vehicle model and engine configuration, with attention to the part number to ensure compatibility. Whats Included The kit includes all necessary head studs, nuts, and washers required for a complete installation, providing a comprehensive solution for your engine rebuild or upgrade. Ideal For Perfect for BMW enthusiasts, engine builders, and tuners seeking to improve engine reliability and performance during rebuilds or high performance modifications.