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Part number: 207-4206
Product Details
ARP 207-4206 Head Studs
Products specifications
Cut to Fit No
Fastener Finish Black oxide
Fastener Material ARP2000
Fastener Style Stud
Head Style 12-point
Notes Fits 4B11 engines.
Quantity Sold as a kit.
Washers Included Yes

(EVO X) Built for the (08) Mitsubishi EVO... Obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. That's why ARP head studs are popular among leading Sport Compact/Import racers.You should know that ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is precisely heat-treated to 200,000 psi. Following heattreat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned something that won't happen with inferior quality head studs.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.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 one that compensates for head gasket compression when the head is installed. This helps prevent blown head gaskets, and assures optimum sealing!

  • Mitsubishi EVO (08)
  • EVO X
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Great company to do business with!  Ordered a Thule 916XTR bike rack for my car and their prices blew away everyone else on the 'net!  Ordered on Sunday, they shipped on Monday and sent me a tracking number that night.  Super fast shipping and great communication! I'll definitely be coming back to Autoplicity again!
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Trustworthy seller. This is my second order. Got it quickly. good job!
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Just what you want from a merchant but don't expect; fast, courteous service and attention to the details of your order.  I'm a happy consumer. Thank you, Autoplicity.  I'll be back.
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Fitment
Mitsubishi Lancer
2010 Mitsubishi Lancer ALL / ES / Evolution GSR / Evolution MR / Evolution MR Touring / GTS / GTS Sportback
2009 Mitsubishi Lancer ALL / ES / Evolution GSR / Evolution MR / Evolution MR Touring / GTS / GTS Sportback
2008 Mitsubishi Lancer ALL / ES / Evolution GSR / Evolution MR / Evolution MR Touring / GTS / GTS Sportback
Return Policy
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