ARP 2000 Head Studs EVO 4-9 (4G63/64)

ARP 2000 Head Studs EVO 4-9 (4G63/64)

  • $242.00

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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.

Set of 10 Studs, Washers & Nuts. ARP Assembly lube included.

We recommend these headstuds as cheap insurance for anyone running 25-30psi boost