STRONGER MAIN STUDS
This ARP main stud kit for VW VR6 engines can help eliminate main cap walk and fretting and also protect the threads in your engine block. ARP main studs are made from premium grade 8740 alloy steel which is rated far superior to many “aircraft quality” competitors. The studs are heat treated to 200,000 psi then thread rolled afterward, giving them twenty times better fatigue strength over studs threaded prior to treatment (a common practice with lesser quality studs). These parts fit ALL VR6 engines and are great for race engines. Manufactured in the U.S.A. and 100% re-usable. Main studs require align honing to be done for installation.