ARP 218-4701 Head Stud Kit for 1990-2005 Mazda Miata 1.6L/1.8L B6/BP DOHC

Vehicle Fitment

• 1990-1993 Mazda MX-5 Miata 1.6L B6ZE (DOHC)
• 1994-1997 Mazda MX-5 Miata 1.8L BP (DOHC)
• 1999-2000 Mazda MX-5 Miata 1.8L BP-4W (DOHC)
• 2001-2005 Mazda MX-5 Miata 1.8L BP-Z3 (DOHC)
• 2004-2005 Mazda MX-5 Miata Mazdaspeed 1.8L BP-4W (DOHC)

Features

• Manufactured from premium 8740 chrome moly steel
• Heat-treated to a tensile strength of 200,000 psi
• Cold-forged for enhanced molecular integrity
• Precision centerless ground for optimal concentricity
• Thread rolled after heat treatment for superior fatigue strength
• Includes hardened parallel-ground washers for even load distribution
• Designed to prevent head lifting under high boost or stress
• Ideal for both naturally aspirated and forced induction builds

Specifications

• Socket Size: 12-point, 1/2" drive
• Thread Size: M11 x 1.5
• Material: 8740 chrome moly steel
• Tensile Strength: 200,000 psi
• Finish: Black oxide
• Quantity: 10 studs, 10 nuts, 10 washers
• Drivetrain Compatibility: Front-Wheel Drive (FWD)

Included Components

• 10x ARP 8740 chrome moly steel head studs
• 10x 12-point nuts
• 10x Hardened parallel-ground washers
• Installation instructions

Product Description

The ARP 218-4701 Head Stud Kit is engineered to provide superior strength and reliability for high-performance applications. Constructed from premium 8740 chrome moly steel and heat-treated to a tensile strength of 200,000 psi, these studs are designed to withstand the demands of both naturally aspirated and forced induction builds. The cold-forged process ensures enhanced molecular integrity, while the black oxide finish provides corrosion resistance.

This kit is compatible with various Mazda MX-5 Miata models equipped with the 1.6L B6ZE and 1.8L BP DOHC engines, including the 1990-2005 models. Whether you're building a high-revving street engine or a race-ready powerplant, the ARP 218-4701 Head Stud Kit is a crucial upgrade to ensure the durability and performance of your engine.