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Part No: | MGGEN-2059 |
Name: | ARP 4 cylinder head stud Kit |
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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.
You will also note that ARP® offers specially undercut studs for
several engines. This procedure (done only to the shorter studs) more
equalizes the "stretch" of both studs, which makes for a more
consistent clamping force-and one that compensates for head gasket
compression when the cylinder heads are installed. This helps prevent
blown head gaskets, and assures optimum engine sealing!
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