This 12 Point Cylinder Head Stud Kit from ARP is designed and engineered for fitment on your 3.5L & 2.3L EcoBoost engine. The ARP2000 cylinder head studs are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining. These ARP2000 kits come complete with 12 Point nuts and hardened parallel washers for an even load distribution and accurate torque readings.
- Arp2000 Fastener Material
- Black Oxide Fastener Finish
- 12-Point Fastener Head Style
- Heat Treated To 220,000 PSI
ARP part number 153-4303 and 151-4301