ARP 202-4201 12pt Head Stud Kit for 74-80 Nissan 610/620/710/720 L20 I4

Vehicle Fitment

• 1974-1976 Nissan 610 (All Trims, 2.0L L20 I4)
• 1975-1979 Nissan 620 (All Trims, 2.0L L20 I4)
• 1975-1977 Nissan 710 (All Trims, 2.0L L20 I4)
• 1977-1979 Nissan 200SX (All Trims, 2.0L L20 I4)
• 1978-1979 Nissan 510 (All Trims, 2.0L L20 I4)
• 1980 Nissan 720 (All Trims, 2.0L L20 I4)

Features

• Premium 8740 chromoly steel construction
• Heat-treated to 200,000 psi tensile strength
• Centerless ground for precise concentricity
• Black oxide finish for corrosion resistance
• 12-point nuts for improved torque accuracy
• High-performance and racing-ready
• Ensures consistent clamping force under extreme conditions
• Compatible with stock and modified engine setups

Specifications

• Socket: 12mm 12-point, 4mm Allen
• Material: 8740 chromoly steel
• Tensile Strength: 200,000 psi
• Finish: Black oxide
• Includes studs, 12-point nuts, and washers

Included Components

• 10x Studs
• 10x 12-Point Nuts
• 10x Hardened Parallel Washers

Product Description

The ARP 202-4201 12pt Head Stud Kit is engineered to provide maximum clamping force for Nissan L20 2.0L I4 engines across 1974-1980 610, 620, 710, 720, 200SX, and 510 models. Built from 8740 chromoly steel and heat-treated to 200,000 psi, these studs offer exceptional strength and reliability for both street and racing applications.

Centerless ground studs ensure precise concentricity while the black oxide finish protects against corrosion. The 12-point nuts allow for accurate torque application, ensuring a consistent head-to-block seal even under extreme conditions.

This complete kit includes 10 studs, 10 12-point nuts, and 10 hardened washers, making it ideal for high-performance builds, engine rebuilds, or classic restoration projects. Fitment confirmed through 2024; 2025 coverage unconfirmed at time of listing.