ARP Crankshaft Main Stud Kit Volkswagen VW Audi VR6 2.8L 2.9L 204-5403

ARP Crankshaft Main Stud Kit

Fits Volkswagen Audi 2.8L & 2.9L VR6

ARP #204-5403 or 2045403

 2 Bolt / 4 Bolt Mains      2
Bolt/Stud Kit      Stud
Thread1      10 mm
Head/Nut Style1      12Point
Head/Nut1 Quantity      14
Washers Included      Yes
Head Size1      12 mm
Broached Allen Size1      4 mm
Assembly Lubricant Included      Yes
Alloy      8740
Material      Chromoly
Color      Black
Finish      Oxide
Quantity      Kit

8740 Chrome Moly: 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.