Quick Answer

Quick Answer: What is the torque specs for ARP head studs?

ARP Head Studs, Main Studs, Rod Bolts Torque and Stretch Specs

U.S. STANDARD TORQUE VALUES Recommended Torque to Achieve Optimum Preload (Clamping Force)
Fastener Tensile Strength 170,000/180,000 PSI (1,171 Nmm2) 220,000 PSI (1,515 Nmm2)
Fastener Diameter Torque ARP lube (ft-lbs) Torque ARP lube (ft-lbs)
1/4″ 12 16
5/16″ 24 32

How do you install ARP head studs on a 12 valve Cummins?

head stud install 12V cummins.

Are ARP head studs torque to yield?

No, ARP bolts are not torque to yield (TTY). TTY fasteners, when being torqued, actually stretch because of the elastic properties of the material. This gives them the needed clamping force, but the downside it that they aren’t reusable (well, at least they shouldn’t be reused).

What are the torque specs for a 5.9 Cummins?

Cylinder Head Torque Settings

For the Cummins 5.9-liter engines made between 1983 and 1989, the bolts in the cylinder head must be tightened to 89 foot-pounds plus an extra 1/4 turn. For engines made between 1998 and 2003, the figure is 77 foot-pounds plus the extra 1/4 turn.

How are ARP bolts measured?

All ARP connecting rod bolts have a small dimple placed on both ends of the bolt that accurately position the rod bolt gauge pins on the bolt. Next, zero the gauge on the relaxed bolt. Then you carefully tighten the rod bolt until the gauge reads the appropriate stretch amount.

How do you torque ARP rod bolts?

ARP Rod Bolt Install – LQ4 Build Segment Six

How much torque does a 12 valve Cummins have?

The Cummins 5.9-liter 6BT 12 valve has 230 HP, 440 lb-ft of torque, and a P7100 inline injection pump right out of the box. The 12-valve is also a popular engine swap choice, powering a slew of Jeep, rat rod, muscle car, and dragster projects.

Can you put head studs without removing head?

Since the head gasket was still good in Reams’ truck, the folks at Fleece were able to swap out the stock head bolts for the new head studs one at a time without removing the head or replacing the head gasket.

Can you reuse ARP head studs Cummins?

Yes, you can reuse them. No need to send them in.

What is the tensile strength of ARP head studs?

ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. Best of all it is less expensive and expected to soon replace MP-35 as the material of choice in the high strength, super-alloy field. Typical tensile strength is 260,000-280,000 psi.

Are ARP head studs good?

There’s more to it than just that, of course
studs generally provide more accurate torque loading. The usual go-to for high-quality head studs is ARP, or Automotive Racing Products — a fastener company from California.

What liter is a 12 valve Cummins?

The 5.9L Cummins, also known as the “12-Valve” Cummins was the first member of the Cummins B-Series to be used in a light truck vehicle. The 6BT used Bosch fuel systems, injector, and VE rotary pump and P7100 inline injection pumps.

How much does a 5.9 12 valve Cummins weigh?

How Much Does A 12 Valve Cummins Engine Weight?

Engine: Cummins 5.9L ISB (commonly referred to as the “24 valve”)
Horsepower: 235 – 325 hp @ 2,900 RPM
Torque: 460 – 610 lb-ft @ 1,600 RPM
Governed Speed: 3,200 RPM
Engine Weight: ~ 1,150 lbs, dry & dressed

How much HP can a 5.9 Cummins handle?

The 5.9L inline-six mill’s factory rotating assembly from ’89 to ’02 is capable of handling 800 hp (1,400 to 1,600 lb-ft of torque) without breaking a sweat, and is often pushed into four-digit territory before aftermarket rods become a consideration.

Are ARP bolts stretch?

Their tensile strength ranges from about 210,000 psi up to 280,000 psi. Each will have its own recommended stretch factor. As recommended by leading manufacturer ARP (Automotive Racing Products), each rod bolt must be stretched to a recommended spec when the rods are installed in the engine.

Are head studs better than bolts?

Studs provide the ability to obtain much more accurate torque values because the studs don’t twist during tightening as do bolts. Because the studs remain stationary during nut tightening, the studs stretch in one axis alone, providing much more even and accurate clamping forces.

Where are ARP head studs made?

All of ARP fastener manufacturing is done in-house at a Southern California facility. The process starts with wire coils and ends with fasteners, nuts and bolts that are superior to what is widely considered aircraft quality.

Are ARP bolts worth it?

The precision and extra strength of ARP means the sockets fit better and the metal on the fastener won’t strip. And ARP mean your mill will live longer and have fewer problems than with stock style bolts. It’s worth it. Better, more consistent clamping on head gaskets, rod bolts, etc.

How much does a bolt stretch when torqued?

To appropriately answer this question, it helps to first consider that only approximately 10-15% of the input torque actually stretches the bolt
the remaining 85-90% of input torque is primarily used to overcome friction between the mating threads and friction under the bolt head or nut.

How do you use ARP bolts?

HOW TO: Install ARP Hardware (Bolts, And Studs on all engines …

How much power can a 12 valve Cummins handle?

The forged-steel connecting rods found in the 12-valve 5.9L (and ‘98.5-’02 24-valve engines) are of an I-beam design and capable of easily handling 800 rwhp in stock form.

What is a 12 valve Cummins worth?

A shop skilled in Cummins swaps will charge around $12,000 to $15,000 to take a 12-valve version with the 5R110.

Which year 12 valve Cummins is best?

1996-1998 has the best injection pumps (perhaps ignoring the 1989-1993 VE) and stronger automatics compared to earlier years. Look at the buyers guide section in the thread below. The 1998 12 valve trucks were only built in 1997.

Do studs need to be torqued?

Studs do not have a torque spec. Bottom them and tighten the nut on them to the proper spec (which is given).

Do head studs add horsepower?

Do Head Studs Add Horsepower? It is true that headstuds do not have a specific horsepower value. When re torqued, stock head bolts can be up to 40psi, but anything beyond that will blow the head gasket unless you throw studs in.

How do you torque a stud?

To ensure proper studding, after riding use a torque wrench to tighten each nut to the following value:

  1. For Two-Ply studs (Gold Digger® Traction Master®, Mega-Bite®, Signature Series™, Trigger™), torque the nut to 15 ft. -lbs.
  2. For Single-Ply studs (Grand Master® and Grand Master Pro™), torque the nut to 30 ft. -lbs.

Can you reuse 5.9 Cummins head bolts?

As long as the old engine has no head hits by pistons or valve seats and it was stock HP, the old bolts pass the Cummins stretch length and visual tests and the new motor build will be stock, safe to reuse the old bolts.

Will ARP black oxide bolts rust?

Like any material, black oxide treated fasteners can rust in the right environments. It will depend on if the fastener is damaged or marred, the type of metal with the black oxide treatment and environmental conditions. In high heat environments, the oil residue that stays on the fasteners will begin to turn brown.

How do you use ARP Ultra torque?

Two Minute Tech: ARP Ultra Torque Tip