ARP Head Bolt Kit, Suit - Chevrolet LS Gen III LS Series (2004 & later) 134-3710

Head Bolt Kit

Chevrolet LS Gen III LS Series small block (2004 & later - except LS9) w/ all same length bolts, 8740, 12pt
Kit 134-3710

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.