OptiTorque Patriot Series Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy ALL49375 virtually eliminating concerns of the

virtually eliminating concerns of the seal spinning out at high temperatures

New rubber bushings in the front give you a smooth quiet ride

This 289-302 Ford pro louvered windage tray for rear sump is designed to fit into stock and aftermarket oil pans

-inch extruded gasket material

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OptiTorque Patriot Series Main Stud Kit - Hex Nuts - 4-Bolt Mains - Chromoly - Black Oxide - Big Block Chevy ALL49375 virtually eliminating concerns of theProduct Description: Main Stud Kit Patriot Series Hex Nuts 4 Bolt Mains Chromoly Black Oxide Big Block Chevy OptiTorque produces premium quality fasteners for a wide range of automotive applications. From stock rebuilds to hard core racing builds, OptiTorque fasteners are USA made and designed, featuring premium materials and designed to meet or exceed OEM specs.