Custom Age 625+ General Replacement Rod Bolt Kit Complete - Set of 8

Custom Age 625+ General Replacement Rod Bolt Kit Complete - Set of 8CUSTOM AGE 625 PLUS: 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

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

which gives themabout 2000% (that’s twenty times) better fatigue strength thanthose studs that are threaded prior to heat-treat (a very commonindustry practice)

Stock fuel pump pushrods leave a lot to be desired

for proper cap alignment

ARP solves the problem by offering stronger head studs that are designed for higher clamping loads

Material 2: Custom Age 625+

which is substantially stronger than the OEM bolts

Hardened parallel-ground washers are included in each kit

come in five different O

There are several important reasons why ARP’s exclusive Perma-Loc rocker arm adjusters won’t loosen like others

The stud kits come complete with a special locking flanged nut

They are available in several different strength materials to safely handle applications from performance street to all-out competition