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 Inch. ARP rod bolts are superior to those from other manufacturers - especially in the area of fatigue strength.

Testing has shown ARP rod bolts to have twenty times the fatigue strength of other bolts. As such, it makes good sense to rely on ARP for optimum connecting rod service and reliability. You'll find the ARP name proudly stamped on each bolt as your assurance of quality.

ARP3.5 (AMS5844): The high cobalt content of this alloy, while expensive, delivers a material with superior fatigue characteristics and typical tensile strength in the 260,000-280,000 psi range. The immunity to hydrogen embrittlement and corrosion is a significant design consideration. This material is primarily used in connecting rods where extremely high loads, high RPM and endurance are important factors.

Note: The grip length in undercut bolts is the distance from the head to the start of the undercut.

Details:

• Material: MP35N
• Finish: Natural
• Bolt Series: Aftermarket Rod Bolt
• Kit Style: 2-Piece Pack
• Thread Size: 3/8 Inch
• UHL: 1.600 Inch
• Thread Length: 0.600 Inch
• Grip Length: 0.145 Inch
• Head Height: 0.365 Inch
• Wrench Size: 7/16 Inch
• Collar Diameter: 0.565 Inch
• Set Qty: 2
• Package Type: Skin
• Kit Type: Bolt