Automotive Racing Products (ARP) are the leading brand in fastener technology. All fasteners are made with the highest quality materials with quality assurance testing.

ARP manufactures fasteners from a wide assortment of materials ranging from popular stainless steel and 8740 chrome moly to exotic alloys that have been developed to handle space travel.

The ARP CA18 Head Stud Kit is available in 8740 premium chrome moly and includes hardened parallel washers for an even load distribution and accurate torque readings.

8740 Chrome Moly: Until the development of todays modern alloys, chrome moly was popularly considered a high-strength material. Now viewed as only moderate strength, 8740 chrome moly is seen as a good tough steel, with adequate fatigue properties for most racing applications, but only if the threads are rolled after heat-treatment, as is the standard ARP production practice. Typically, chrome moly is classified as a quench and temper steel, that can be heat-treated to deliver tensile strengths between 180,000 and 210,000 psi.

Engine Compatibility :

– Nissan CA18DE/T