ARP 134-5401 Main Studs Kit for Chevrolet Small Block SBC Engines with 2 Bolt Large Journal MainsMain Bolt Style: 2 bolt Fastener Style: Stud Fastener Nut Style: Standard hex Works with Windage Tray: No Fastener Yield Strength (psi): 200,000 psi Nuts Included: Yes Washers Included: Yes Notes: Designed to fit large journal crankshafts. 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
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ARP 134-5401 Main Studs Kit for Chevrolet Small Block SBC Engines with 2 Bolt Large Journal Mains