ARP’s Custom Age 625 Plus material is 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+.
Best of all, it is less expensive and expected to soon replace MP-35 as the material of choice in the high strength, super-alloy field. Typical tensile strength is 260,000 psi.
No Modification to your cylinder head or block is required as these are a direct drop-in replacement for the OEM head stud!
Yield Strength: 235-255,000 PSI
Tensile Strength: 260,000 PSI
- 4G63 DOHC Engines M11 Thread from 1994 +(11mm Stud)
- 4G64 SOHC 16v Engines
- 4G64 DOHC 16v Engines
- 4G69 SOHC 16v Engines Great Wall Models
- 4G69 SOHC 16v Mivec Engines incl Great Wall Models