Holiday Shopping! Check out our holiday shopping guide to save on all your parts!

Financing available for as low as 0%.

Holiday Shopping! Check out our holiday shopping guide to save on all your parts!

Financing available for as low as 0%.

← Prev   |   Next →
Home   /   11-14 WRX Motor Builds   /   ARP Custom Age 625+ Head Stud Kit 11mm - 02-18 WRX / 04-18 STI

ARP Custom Age 625+ Head Stud Kit 11mm - 02-18 WRX / 04-18 STI

$489.99 $721.47

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+. 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 260,000-280,000 psi.


Related Items

ACL Race Main Bearing Set Standard Size Position 5 - 02-14 WRX / 04+ STI

$57.32 $92.45

ACL's main bearings are made of a softer metal so that you don't wear out your crank or engine block. Additionally, a thin layer of oil lubricates the connection between...

View full product details

ACL Race Rod Bearings Oversized +.001in - 02-14 WRX / 04+ STI

$34.57 $55.75

The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings.  ACL bearings are designed to withstand higher RPM conditions....

View full product details

ARP Case Bolt Kit

$402.95 $559.66

The ARP Pro Series Main Bolt Kits are forged from premium 8740 chrome moly and all the bolts feature generous under-head radius and heat treating for utmost reliability. The threads...

View full product details