ARP 203-4306 Head Stud Kit for Toyota - 2.4L 2AZFE 4-Cylinder

The ARP 203-4306 head stud kit is specifically engineered for Toyota 2.4L 2AZFE 4-cylinder engines from 2007 and later, providing the superior clamping force needed for high-performance and boosted applications. This precision-manufactured kit delivers exceptional reliability when building engines for turbocharged, supercharged, or high-compression builds where factory head bolts simply cannot handle the increased cylinder pressures.

ARP2000 Material Construction:

• Manufactured from premium ARP2000 material rated at 220,000 psi tensile strength
• Thread rolled after heat-treat for 20 times better fatigue strength than pre-threaded fasteners
• Centerless ground for precise concentricity ensuring perfect cylinder head alignment
• Includes hardened parallel-ground washers for even load distribution and accurate torque readings

Superior Engineering Process:

Each stud undergoes ARP's rigorous manufacturing process, including vertical rack heat-treating for complete heat penetration, followed by precision centerless grinding. The studs feature specially undercut designs on shorter studs to equalize stretch characteristics, resulting in more consistent clamping force that compensates for head gasket compression. This engineering helps prevent blown head gaskets and ensures optimal engine sealing under extreme conditions.

Applications:

• 2005-2010 Scion tC 2.4L 2AZFE
• 2009-2010 Toyota Corolla XRS 2.4L 2AZFE
• 2009-2013 Toyota Matrix S/XRS 2.4L 2AZFE
• Other 2007+ Toyota 2AZFE applications

This complete head stud kit includes all necessary studs, nuts, and washers for a professional installation. ARP studs are the preferred choice of professional engine builders for their zero-defect quality standard and proven reliability in competitive racing environments.