What are the torque specs for ARP head studs?
What are 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 |
Do ARP head studs need to be torqued?
Do I need to re-torque my head bolts or studs? If you follow the ARP installation instructions, there should be no need to do a re-torque. However, it may be necessary under certain circumstances if the gasket manufacturer’s instructions require it, particularly if a fire ring has been installed.
How many times can you torque ARP head studs?
Generally bolts/studs that have a specific torque value to tighten to are reuseable, but bolts that you torque then turn an extra 1/4 turn or a number of degrees are torque to yield bolts and shouldn’t be reused more than once.
Are GSR and B16 head studs the same?
The GSR has a raised casting between Cyl 2 and 3. The type-R shares the same head studs with the B16 from both the factory and aftermarket alike. This is because the head dictates the studs.
What are ARP studs?
That’s where Automotive Racing Products, better known as ARP, comes in. They are in the business of making ultra-strong fasteners specifically designed to keep all off you expensive engine parts from flying apart.
Are ARP head studs worth it?
Studs are typically considered better because they’re less likely to twist while being torqued. This lack of twist, compared to bolts, yields a more consistent torque loading. Bolts are less expensive and easier to use in installations where there are clearance issues that would preclude studs.
Can you reuse Arp 425 head studs?
Yes, you can reuse them. No need to send them in.
Can you reuse ARP 425 head studs?
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.
Why are ARP studs so expensive?
ARP stuff is typically more expensive than other brands, but again, that’s because they use more expensive materials, and the manufacturing process, from heat treating to machining, is more involved.
Why are ARP bolts so good?
ARP’s fasteners are built to withstand serious racing and have higher tensile strengths and can survive higher stresses than most aircraft fasteners will ever see.
What are the ARP bolt torque specifications?
Rod Bolts. Rod bolts with part no.
Are ARP head bolts reusable?
the gen III LS engines have one time use head bolts. anything before that the head bolts from GM were not stretch bolts and are perfectly fine for reusing. ARP head bolts are all reusable, even for the LS series engines.
What are engine studs?
An engine stud is often an alternative to a bolt. It is a straight length of steel rod that has threads at both ends.