GM LS 4 BOLT MAIN STUD KIT SUITS ALL LS ENGINES WITH STOCK WINDAGE TRAY Brand_PERMASEAL AF9201-100-075

AF9201-100-075

meaning a perfect balance between boost control and flow

2 5/8" mechanical boost/vac

Water Pump Bolt Kit

Engine: EJ SERIES

GM LS 4 BOLT MAIN STUD KIT SUITS ALL LS ENGINES WITH STOCK WINDAGE TRAY Brand_PERMASEAL AF9201-100-075GM LS 4 Bolt Main Stud Kit 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 steel and