What are ARP rod bolts?

ARP Pro Series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. They are heat-treated and threads are rolled to provide up to ten times more fatigue strength.

What is special about ARP bolts?

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.

How do you torque ARP rod bolts?

Recommended torque is equal to 75% of the fastener’s yield strength….ARP General Torque recommendations

1. Apply ARP Ultra-Torque® to fastener threads and the underhead of the bolt or underside of the nut.
2. Install fastener hand tight.
3. Use torque wrench to install fastener to the torque value from the chart below.

How do you measure ARP rod bolts?

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.

What’s the difference between Arp 625 and 2000?

The difference between ARP2000 and Custom Aged 625+ starts at the base material. The Custom Aged base material costs more because it is a premium material. The manufacturing process is slightly different, but the main difference is the material itself.

What is L19 material?

L19: This is a premium steel that is processed to deliver superior strength and fatigue properties. L19 is a very high strength material compared to 8740 and ARP2000 and is capable of delivering a clamp load at 260,000 psi.

Can you reuse ARP bolts?

Are ARP bolts and studs re-usable? Yes. As long as the fasteners have been installed and torqued correctly, and show no visible signs of damage, they can be re-used. If they show any signs of thread galling or corrosion, they should be replaced.

What grade are ARP bolts?

All ARP bolts and studs are fine grain – usually ASTM 8 or finer. With 10 being the finest.

How much power can ARP head studs handle?

ARP2000 can achieve clamp load at 220,000 psi. Cosworth H11 studs are 260,000psi.

What grade of stainless are ARP bolts?

What grade steel are ARP bolts?

When tightening connecting rod cap bolt What is the desired tool is used?

“Yes, you can quite reliably tighten rod bolts with a torque wrench, but this process assumes a few things. First, you must use the specified lubricant to give accurate torque readings. Second, you must use an accurate wrench; without insulting every home mechanic, not everyone has one.