Description ARP Head Stud Kit – 6.4L Ford Powerstroke (Part #250-4203) When building a high-horsepower 6.4L Ford Powerstroke engine, you need a strong and reliable foundation. ARP (Automotive Racing Products) is renowned for producing premium fasteners trusted by professional engine builders worldwide. This ARP Head Stud Kit offers superior strength and durability, making it an essential upgrade for 2008-2010 6.4L Powerstroke engines running higher than stock boost levels. ARP Pro Series head studs provide excellent protection against head gasket failure in high-performance and competition applications. Manufactured from premium 8740 alloy, these studs exceed aircraft-grade quality standards. Each stud undergoes precise vertical heat treatment to a tensile strength of 200,000 psi. Furthermore, ARP threads each stud after heat treatment, significantly increasing fatigue strength—up to 1000% better than studs threaded before heat treatment, a common but inferior industry practice. For dependable, long-lasting performance, this ARP Head Stud Kit delivers unmatched quality and strength, ensuring your engine can handle extreme conditions with confidence.
