RCM Head Stud Kit - 14/14mm Superstud (EJ20, EJ22, EJ25)

The latest evolution of our proven and hugely successful 14/14mm RCM Head Stud Kit designed for the ultimate in engine performance and reliability! Introducing the new RCM 14mm Superstud Head Stud Kit.

Our engineers have taken the ultimate EJ series head stud solution to the next level by incorporating some new features into the RCM 14mm Superstud kit to improve performance and ease of installation for your EJ engine.

FEATURES

• Huge increase in tensile strength and yield when compared with the OE head bolts.
• Massively increased clamping load for big bhp applications.
• Eliminates cylinder head lift at high levels of boost.
• Supplied with ARP high tensile nuts, washers, RCM assembly lube and installation guide.
• As used in RCM Gobstopper I + II Time Attack race cars.
• Made in the UK from high tensile aircraft grade S99 steel to WRC spec.
• Precision rolled threads for maximum strength.

TECHNICAL SPECIFICATIONS

• Cylinder head studs manufactured using "Aircraft Grade S99 High Tensile Steel" to WRC specification.
• Precision rolled threads.
• Cylinder head stud thread pitch (Block End): M14X2.
• Cylinder head stud thread pitch (Cylinder Head end): 9/16 - 18 UNF.
• Cylinder head stud length: 197mm.

INCLUDED IN THE KIT

• 12 x RCM 14mm head studs.
• 12 x ARP 9/16" 8740 Chromoly 12pt nut
• 12 x ARP 9/16" 8740 Chromoly washer
• 1 x Sachet of assembly lube and fitting guide for a comprehensive install.