ARP 201-4601 Pro Series Head Stud Kit M10 BMW 1.6/1.8/2.0 2002/318i/320i E21/E30

Vehicle Fitment

• 1966-1976 BMW 2002 (Base, Cabriolet, Turbo, ti, tii)
• 1977-1983 BMW 320i (E21)
• 1984-1985 BMW 318i (E30)

Features

• High-performance 8740 chromoly steel construction
• Heat-treated to a tensile strength of 200,000 psi
• Precision-machined for consistent torque values
• 12-point nuts for improved grip and torque accuracy
• Undercut stud design for enhanced clamping force
• Ideal for both naturally aspirated and forced induction applications
• Superior to factory stretch head bolts in heavy-use applications
• Recommended by leading BMW performance specialists

Specifications

• Material: 8740 chromoly steel
• Tensile Strength: 200,000 psi
• Thread Size: M10
• Socket Size: 14mm 12-point, 5mm Allen
• Finish: Black oxide coating
• Includes: 12-point nuts, washers, and assembly lubricant

Included Components

• 1x ARP 201-4601 Head Stud Kit
• 12x 12-point nuts
• 12x Hardened parallel ground washers
• Assembly lubricant

Product Description

The ARP 201-4601 Head Stud Kit is engineered to provide superior clamping force and reliability over factory head bolts. Constructed from high-quality 8740 chromoly steel and heat-treated to a tensile strength of 200,000 psi, these studs are ideal for both naturally aspirated and forced induction applications. The 12-point nuts and undercut stud design ensure precise torque application and enhanced clamping force, making them a preferred choice for performance enthusiasts and professionals alike.

This kit is compatible with a range of BMW models equipped with the M10 4-cylinder engine, including the 1966-1976 BMW 2002, 1977-1983 BMW 320i (E21), and 1984-1985 BMW 318i (E30). Whether you're building a high-revving naturally aspirated engine or a turbocharged setup, the ARP 201-4601 Head Stud Kit offers the durability and performance needed to withstand the rigors of high-performance driving.