ARP Head studs are the go-to method of ensuring accurate and consistent torque figures holding your head down to the block. They install as studs rather than bolts and as such the head must be lifted on and over them during installation, this makes aligning everything far easier. They are re-usable and offer industry-leading strength, […]
ARP Main studs are the go-to method of preventing main caps from walking and fretting, keeping the crank securely in place. Made from 8740 chromoly steel, they are re-usable and offer industry-leading strength. ARP Main studs are a truly worthwhile upgrade if you are building an engine to take ~14psi+.