ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi.

ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort.

The Mitsubishi 4G63 Head Stud Kit features 12-Point Nuts.

(207-4203)

SKU 207-4203
Brand ARP
Shipping Weight 0.5000kg
Shipping Width 0.150m
Shipping Height 0.100m
Shipping Length 0.100m
Shipping Cubic 0.001500000m3

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