20 x Even Length Studs - 133mm Overall Length, 50mm Shank Length. M11 x 2.00mm thread into Engine Block, M11 x 1.25mm Nut End.
20 x 12 Point Nuts - M11 x 1.25mm Thread. 18mm Outside Diameter, 11.60mm Height.
20 x Flat Washers - 20mm Outside Diameter, 11.10mm Inside Diameter, 3mm Thickness.
10 x Support Studs - 63.75mm Overall Length, 9mm Shank Length. M8 x 1.25mm thread into Engine Block, 7/16"-20 Nut End.
10 x 12 Point Nuts - 7/16"-20 Thread. 15.70mm Outside Diameter, 10mm Height.
10 x Flat Washers - 15.75mm Outside Diameter, 8.50mm Inside Diameter, 2mm Thickness.
GM LS Head Stud Kit with Even Length Studs
12 Point Nuts, Suit 2004 and On Engines, 8740 Grade Material
Aeroflow Performance head studs greatly improve your cylinder head-to-block sealing compatibilities. This is important in engines with high power adders such as turbochargers, superchargers or nitrous. They can even be a great addition to a mildly modified build as insurance against failure. All head studs provide a more accurate and consistent torque loading over traditional head bolts.
These head studs are manufactured from aircraft quality 8740 high tensile strength chromoly steel and cold-forged to ensure molecular integrity within the stud. Meaning these studs are rated up to 190,000 psi making them stronger than Grade 8 and OEM fasteners. All kits come complete with 12-point nuts and hardened washers for an even load distribution and accurate torque readings.