GM LS 4 Bolt Main Stud Kit Suits all LS Engines with Stock Windage Tray 12 point Aeroflow Fittings Fuel Etc.. 035" thicker than stock and

035" thicker than stock and the starter ring is welded to both sides of the flexplate for additional strength

Exhaust wrap

engine rebuild

Works with Bosch LSU4

and straights to help you to fabricate your own custom

GM LS 4 Bolt Main Stud Kit Suits all LS Engines with Stock Windage Tray 12 point Aeroflow Fittings Fuel Etc.. 035" thicker than stock andAF37 2227 GM LS 4 Bolt Main StudKit Suits all LS Engines with Stock Windage Tray, 12 Point Nuts and 8740 Grade Material Aeroflow Performance main studs are designed to keep your main caps in placed and stop them walking and fretting which can lead to engine failure. These studs are preferred over bolts as they allow you to obtain more accurate torque readings. These main studs are manufactured from aircraft quality 8740 high tensile strength chromoly