ARP

300-6628

ARP - Arp3.5 Carillo Replacement Rod Bolts

Main Bolts & Studs

Number of Parts - 2

A large number of connecting rod manufacturers have chosen ARP bolts as standard equipment. They're proud to advertise their products as being equipped with ARP rod bolts. And for good reason. The "weak link" in a connecting rod has always been the bolt and racers know that nobody builds a better bolt than ARP. However it is critically important to monitor the stretch of each bolt and replace it when it has permanently elongated by .001. Below you will find an extensive listing of aftermarket connecting rods and replacement bolt specifications.In some instances you may want to go to an ARP rod bolt made from a better grade of material. This will provide you with improved reliability. However please understand that when you want bolts made from exotic super high strength materials the cost will increase significantly. This is typically defined by the loads that are carried by the bolts in terms of piston/rod weight and the rotational speed of the engine. The most cost effective design is the one in which the bolt strength is just great enough to handle its anticipated load. Using a material which has far more strength than required is not as cost effective.Testing has shown ARP rod bolts to have ten times the fatigue strength of other bolts. ARP3.5 (AMS5844): While similar to Inconel 718 these superalloys are found in many jet engine and aerospace applications where heat and stress attack the life of critical components. The high cobalt content of this alloy while expensive delivers a material with superior fatigue characteristics and typically tensile strength in the 260 000-280 000 psi range. The immunity to hydrogen embrittlement and corrosion of these materials is a significant design consideration. These materials are primarily used in connecting rods where extremely high loads high RPM and endurance are important factors - Formula 1 NASCAR and IRL applications.

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ProTaper 11 231C Micro Black Handlebar 11-231C
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