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These ARP main studs are made from 8740 chromoly steel and have a 190,000 psi tensile-strength rating. They are precision centerless-ground and thread-rolled to Mil-S-8879 specs, with a black oxide finish for corrosion resistance. The kits come complete with hardened washers and high-strength hex nuts.
Notes:Will work in conjunction with the factory windage tray. Kit includes side bolts. Gen III/LS Series small block and GMPP LSX block. New LT1 must use ARP-234-5802. Windage tray not included.