ARP 207-4203 M11 Head Stud Kit for Mitsubishi 4G63 / DSM / Evo 1-9

Vehicle Fitment

• 1994 - Up Mitsubishi 4G63 (7-bolt head, DSM / Evo I-IX / Eclipse / Talon / Galant VR-4)
• 1994.5 - 1999 Mitsubishi Eclipse / Eagle Talon (GST / GSX, 4G63T)
• 1994 - 1998 Mitsubishi Eclipse / Talon / Laser non-turbo (4G63 NA, 7-bolt head)

Fitment Notes

• This is a head stud kit intended to replace original 7-bolt M11 head studs for 4G63 engines.
• Not compatible with 6-bolt heads, 4G64, or 8-bolt head designs unless adapted.
• Requires torquing of nuts to specification and use of ARP assembly lube.
• Ensure proper thread engagement depth and oil feed clearance before installation.

Features

• 8740 chromoly alloy studs rated for 200,000 psi tensile strength
• Cold-formed and centerless ground for enhanced precision and fatigue life
• Thread rolled after heat treat to improve core strength
• Comes with hardened 12-point nuts and parallel ground washers
• Manufactured to aerospace-grade tolerances for consistency and reliability
• Allows even and precise clamping force for high boost and high RPM use
• Helps reduce head gasket failure under extreme conditions
• Includes ARP Ultra-Torque assembly lube for correct preload and torque behavior

Specifications

• Part Number: 207-4203
• Stud Size / Thread: M11 (metric 11 mm)
• Material: 8740 chromoly alloy
• Tensile Strength: 200,000 psi
• Nut Type: 12-point hardened steel
• Washer Type: Parallel ground
• Kit Includes: 10 studs, 10 nuts, 10 washers, assembly lube

Included Components

• 10x ARP 8740 chromoly head studs (M11 size)
• 10x Hardened 12-point nuts
• 10x Parallel ground washers
• 1x Ultra-Torque assembly lube packet
• Instruction / torque spec sheet

Product Description

The **ARP 207-4203** head stud kit is a performance upgrade designed for Mitsubishi's 4G63 engines using the 7-bolt head design. This kit provides a robust and reliable way to clamp the cylinder head under high boost and high-RPM conditions. The cold-formed, 8740 chromoly alloy studs are heat treated and precision ground to ensure exceptional tensile strength and durability.

Each kit includes hardened 12-point nuts, parallel ground washers, and ARP's Ultra-Torque assembly lube to help achieve consistent, accurate torque and preload. Ideal forTurbo DSM / Evo builds or high-stress engine applications, this kit helps reduce the chance of head gasket failure and improves the longevity of your high-performance engine. Replace original head bolts or studs with this kit during engine builds or rebuilds for strong, dependable clamping performance.