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Features
Forged in-house at ARP using only the finest quality materials
Heat-treated using special vertical racks to assure complete 360° penetration
Threads rolled after heat-treat to provide up to 10-times longer fatigue strength
Precision CNC-machined to exacting specifications
Specially designed for optimum reliability in each application
Until the development of today’s 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.
Fits all Miatas from 1990-2005
Features
Forged in-house at ARP using only the finest quality materials
Heat-treated using special vertical racks to assure complete 360° penetration
Threads rolled after heat-treat to provide up to 10-times longer fatigue strength
Precision CNC-machined to exacting specifications
Specially designed for optimum reliability in each application
Until the development of today’s 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.
Fits all Miatas from 1990-2005