Holden V8 2 Bolt Main Stud KitSuits 253 304 308, 12 Point Nuts and 8740 Grade MaterialBrand: AEROFLOWPart Number: AF37-2230Description: Aeroflow Performance main studs are designed to keep your main caps in placed and stop them walking and frettingwhich 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 cold-forged to ensure molecular integrity within the stud. Meaning thesestuds are rated up to 190,000 psi making them stronger than Grade 8 and OEM fasteners. Allkits come complete with 12-point nuts and hardened parallel washers for an even load distribution and accuratetorque readings.
Additional Specifications: Kit Contains:
10 x Long Studs.
101.6mm Overall Length.
49.5mm Shank Length.
7/16-14" thread into Engine. 7/16-20 " Nut End.
10 x 12 Point Nuts.
7/16-20" Thread.
18.7mm Outside Diameter.
11mm Overal Height.
10 x Flat Washers.
20.4mm Outside Diameter. 11.3mm Inside Diameter.
3mm Thickness.