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ARP Bolts & Studs

More and more Diesel Power Products customers are running large single turbos or compound turbo set-ups. Many of these turbos are capable of upwards of 50PSI of boost pressure with the right fueling. ... read more

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ARP 230-4201 Diesel Head Stud Kit 01-16 6.6L GM Duramax ARP-230-4201 15.00 ARP 230-4201 Diesel Head Stud Kit 01-16 6.6L GM Duramax ARP 230-4201 ARP Head studs are a must if you are running in excess of 45psi of boost on your Duramax Diesel. Good insurance against head gasket failure. ARP Diesel Head Stud Kit 98.5-22 5.9L/6.7L Dodge Cummins 247-4202 ARP-247-4202 8.00 ARP Diesel Head Stud Kit 98.5-22 5.9L/6.7L Dodge Cummins 247-4202 ARP 247-4202 If you are running in excess of 45psi of boost on your 24V or Common Rail Dodge Cummins you run a real risk of stretching your stock head bolts causing head gasket failure. ARP diesel head studs are good insurance against head gasket failure. Don't ruin your day at the track or dyno. Get it done! It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. ARP 247-4203 Diesel Head Stud Kit 89-98 5.9L 12V Dodge Cummins ARP-247-4203 15.00 ARP 247-4203 Diesel Head Stud Kit 89-98 5.9L 12V Dodge Cummins ARP 247-4203 If you are running in excess of 45PSI on your stock headbolts on your 12V Cummins, your stock headbolts are in serious danger of stretching, causing head gasket failure. ARP Diesel Head Stud Kit 94-03 7.3L Ford Powerstroke 250-4201 ARP-250-4201 15.00 ARP Diesel Head Stud Kit 94-03 7.3L Ford Powerstroke 250-4201 ARP 250-4201 If you are running higher than stock boost on your 94-03 7.3L Ford Powerstroke, ARP headstuds are good insurance against head gasket failure. ARP Diesel Head Stud Kit 03-07 6.0L Ford Powerstroke 250-4202 ARP-250-4202 15.00 ARP Diesel Head Stud Kit 03-07 6.0L Ford Powerstroke 250-4202 ARP 250-4202 Head gasket failure is one of the most common problems with 03-07 6.0L Powerstrokes. Installing ARP headstuds is a must, especially if you are running a chip or programmer that modifies your boost. ARP CA625 Diesel Head Stud Kit 01-10 6.6L GM Duramax 230-4202 ARP-230-4202 20.00 ARP CA625 Diesel Head Stud Kit 01-10 6.6L GM Duramax 230-4202 ARP 230-4202 ARP CA625 (Custom Age) Diesel Head Stud Kit 01-09 LB7, LLY, LBZ, LMM 6.6L GM Duramax 230-4202 ARP CA625 Diesel Head Stud Kit 98.5-22 5.9L/6.7L Dodge Cummins 247-4204 ARP-247-4204 15.00 ARP CA625 Diesel Head Stud Kit 98.5-22 5.9L/6.7L Dodge Cummins 247-4204 ARP 247-4204 Running a big single turbo or twins? Head studs are a must if you are pushing in excess of 45psi of boost. Why take the chance of ruining your day at the track or worse, doing permanent engine damage. With performance enthusiasts adding increasing amounts of turbo boost to diesel applications, ARP has provided an extra measure of security in the form of extra-strong head studs manufactured from the firm's proprietary Custom Age 625+ material that has a minimum rating of 260,000 psi tensile strength. ARP CA625 Diesel Head Stud Kit 94-98 12 Valve 5.9L Dodge Cummins 247-4205 ARP-247-4205 15.00 ARP CA625 Diesel Head Stud Kit 94-98 12 Valve 5.9L Dodge Cummins 247-4205 ARP 247-4205 ARP Custom Age 625+ Diesel Head Stud Kit 94-98 12 Valve Dodge Cummins 247-4205 ARP Diesel Main Stud Kit 94-03 7.3L Ford Powerstroke 250-5801 ARP-250-5801 15.00 ARP Diesel Main Stud Kit 94-03 7.3L Ford Powerstroke 250-5801 ARP 250-5801 Diesel Power Products now sells ARB Main stud kits for 94-03 7.3L Ford Powerstroke ARP Diesel Main Stud Kit 01-05 GM 6.6L Duramax 230-5401 ARP-230-5401 15.00 ARP Diesel Main Stud Kit 01-05 GM 6.6L Duramax 230-5401 ARP 230-5401 Diesel Power Products now sells ARP Diesel Main Stud Kit 01-05 GM 6.6L Duramax 220-5401 ARP Diesel Main Stud Kit 06-10 LBZ/LMM GM 6.6L Duramax 230-5402 ARP-230-5402 15.00 ARP Diesel Main Stud Kit 06-10 LBZ/LMM GM 6.6L Duramax 230-5402 ARP 230-5402 Diesel Power Products now sells ARP Diesel Main Stud Kit 06-10 LBZ/LMM GM 6.6L Duramax 230-5402 ARP Diesel Main Stud Kit 04-07 5.9L Dodge Cummins 247-5403 ARP-247-5403 15.00 ARP Diesel Main Stud Kit 04-07 5.9L Dodge Cummins 247-5403 ARP 247-5403 Diesel Power Products now sells ARP Diesel Main Stud Kit 04-07 5.9L Dodge Cummins 247-5403

More and more Diesel Power Products customers are running large single turbos or compound turbo set-ups. Many of these turbos are capable of upwards of 50PSI of boost pressure with the right fueling. At these pressures the stock head bolts on our light duty diesel trucks are prone to stretching which can lead to head gasket failure. Head to block sealing is critical and that's where ARP Diesel Head Studs come in.

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 220,000 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.

Cummins Head Studs / Duramax Head Studs / Powerstroke Head Studs

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