Maximize the clamping force and reliability of your high-performance Honda/Acura K-Series engine with the industry-leading ARP 208-4701 Pro Series Head Stud Kit. Engineered specifically for the demanding applications of the K20A, K20A2, and K20A3 engines found in the Acura RSX Type-S and Honda Civic Si, this kit is the ultimate upgrade for boosted or naturally aspirated builds.

Why Choose ARP 208-4701 Studs for Your K20?

• Unrivaled Strength: Constructed from premium 8740 Chrome Moly Steel and heat-treated to an impressive 200,000 psi tensile strength, these studs provide superior clamping force to prevent cylinder head lift and blown head gaskets under high boost and extreme combustion pressures.

• Precision Engineering: ARP's meticulous manufacturing process includes centerless grinding for near-perfect concentricity and thread rolling after heat-treat, resulting in a fatigue strength up to 10 times greater than lesser quality fasteners.

• Complete Kit: The set includes a full compliment of black oxide finished studs, heat-treated 12-point nuts for easy torquing, and hardened parallel washers, plus a pack of ARP Ultra-Torque fastener assembly lubricant for accurate torque readings.

Don't compromise your engine's integrity—whether you're at the drag strip, the road course, or building a high-horsepower street car, the ARP 208-4701 is the essential performance upgrade for your K-Series motor. Straight Six Imports stocks the best in performance fasteners to keep your build secure.

Key Fitment: 2002-2006 Acura RSX, 2002-2005 Honda Civic Si (K20A/K20A2/K20A3 engines).