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ARP Head Studs

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!

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Acura ARP Head Studs


BMW ARP Head Studs


Buick ARP Head Studs


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Chrysler ARP Head Studs


Dodge ARP Head Studs


Ford ARP Head Studs


Honda ARP Head Studs


Mazda ARP Head Studs


Mini ARP Head Studs


Mitsubishi ARP Head Studs


Nissan ARP Head Studs


Pontiac ARP Head Studs


Saturn ARP Head Studs


Subaru ARP Head Studs


Toyota ARP Head Studs


Volkswagen ARP Head Studs
 
ARP Head Stud Reviews
  (9.6 of 10) 53 Reviews    Write Review
RatingDateModelReview
1004/15/2013Corollaall good
1002/15/2013Integrawonderful product from ARP also wonderful customer service from HorsepowerFreaks
507/09/2012IntegraThe product I received had one stud without thread at one side. The quality of the product was excellent but it took ages to get the problem solved.
1006/03/2012Neonthey work great
912/19/2011M3You have to have this bolts if you are going to run high boost....
1009/19/2011Supra
1001/19/2011EclipseFast shipping. Fitment was perfect and came with their own assembly lube. Easy to follow instructions.
1001/11/2011IntegraLs- perfect no leaks no missing stuff perfect kit
1007/03/2010SupraInstall was basic and ARP product are always high quality. Only thing bad about the studs are that the head of the 7mgte can no longer be removed while the motor is still in the car. So, in my opinion, get it right the first time and this won't be an issue.
1005/09/2010IntegraProduct worked perfect and was early
1010/30/2009Civicexactly what i orderd... im building my block for boost and plan on ordering from them again
53 Reviews

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