ARP Head Stud Kit - Early LS (Pre-2003 Blocks) Late Model Engines These are a factory GM

These are a factory GM head that have been CNC Ported

They are heat-treated prior to thread rolling and machining

• Hardboard MDF 0

• One size fits most

Improve reliability under extreme driving conditions

ARP Head Stud Kit - Early LS (Pre-2003 Blocks) Late Model Engines These are a factory GMARP Pro Series cylinder head studs are cold forged to ensure molecular integrity. They're heat treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12 point nuts, and all studs come complete with hardened parallel washers for an even load distribution and accurate torque readings. With hundreds of models ready to ship, these cylinder head fasteners can be ordered for virtually any style engine. Cylinder Head