Many connecting rod manufacturers have selected ARP bolts as standard equipment.
They take pride in advertising their products as equipped with ARP rod bolts for good reason.
The bolt has always been the weak link in a connecting rod, and racers recognize that nobody builds a better bolt than ARP.
It is critically important to monitor the stretch of each bolt and replace it when it has permanently elongated by .0005.
Below, you will find an extensive listing of aftermarket connecting rods and specifications for replacement bolts.
In some cases, you may want to opt for an ARP rod bolt made from a superior grade of material.
This will yield greater reliability.
However, please understand that when you seek bolts made from exotic, super high strength materials, the cost will significantly increase.
If you are on a budget, it is best to choose the most cost-effective solution.
This is typically defined by the loads carried by the bolts in terms of piston/rod weight and the engine's rotational speed.
The most cost-effective design is one in which the bolt strength is just sufficient to handle its anticipated load plus a safety margin for occasional overloads.
Using a material with far more strength than required is not as cost-effective but will certainly provide an extra margin of safety and longer service life.
You should also be aware that ARP rod bolts are superior to those from other manufacturers, particularly in fatigue strength.
Testing has demonstrated that ARP rod bolts possess ten times the fatigue strength of other bolts.
In the chart below, you will find a bar chart that graphically illustrates the difference between ARP Pro Series rod bolts and the fastener made by a leading competitor.
It is clear to see why ARP bolts are superior.
Therefore, it makes sense to rely on ARP for optimum connecting rod service.
