ARP Pro Series Head Stud Kit (Honda K20A / K20A2 / K20Z1 / K20Z3) | Niced Up

Obtaining optimum cylinder head-to-block sealing is critical in high-output engines employing high-compression pistons or power adders like turbochargers, superchargers, and nitrous oxide. The ARP Pro Series Cylinder Head Stud Kit (Part # 208-4701) is engineered specifically for Honda and Acura K20A-series 2.0L DOHC i-VTEC engines.

Manufactured from premium ARP2000 alloy steel rated at 220,000 psi tensile strength, these studs are thread-rolled after heat-treating to provide 1000% better fatigue strength than studs threaded prior to heat-treating.

Key Features & Benefits:

• ARP2000 Alloy Construction: Rated at 220,000 psi tensile strength for ultimate clamping force and cylinder head retention under extreme boost.
• Precision Thread Rolling: Threaded after heat treatment for significantly increased fatigue life and thread durability.
• Complete Kit Included: Includes 12-point nuts and hardened parallel washers for even load distribution across the cylinder head deck.

Technical Specifications:

• Material Grade: ARP2000 Alloy Steel
• Tensile Strength: 220,000 PSI
• Socket Drive: 1/2" 12-Point Nut / 3/16" Allen Drive
• Warranty: ARP Limited Manufacturer Warranty
• Brand: ARP