ARP Head Stud Kit M11 Hardened 12pt. (EVO 8-9)
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.
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.
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.
-
Fastener Style - Stud
Undercut Stud - No
Head Style - 12-point
Fastener Material - 8740 Chromoly
Fastener Finish - Black Oxide
Washers Included - Yes
Cut to Fit - No
-
Mitsubishi EVO 8
Mitsubishi EVO 9
