ARP Custom AGE 625 PLUS Head Stud Kit For ALL 4-Stroke 1.8L Yamaha

"This newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness -- with complete resistance to atmospheric corrosion and oxidation. ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. [...] expected soon to replace MP-35 as the material of choice in the high strength, super-alloy field. Typical tensile strength is 260,000-280,000 psi." -ARP

Kit includes:

• 10 head studs made of Custom Age 625 Plus
• 10 washers
• 10 nuts
• lubricant

Torque to 100lbs.

Applications:

• ALL 4-stroke 1.8L Yamaha jet ski