af37-2126- GM LS Head Bolt Kit with Odd Length
GM LS Head Bolt Kit with Odd Length
12 Point Head, Suit 2003 and Earlier Engines, 8740 Grade Material
Aeroflow Performance head bolts greatly improve your cylinder head-to-block sealingcompatibilities. This is important in engines with highpower adders such as turbochargers, superchargers or nitrous. They can even be agreat addition to a mildly modified build as insurance against failure.
These head bolts are manufactured from aircraft quality 8740 high tensile strength chromolysteel and cold-forged to ensure molecular integrity within the bolt. Meaning thesebolts are rated up to 190,000 psi making them stronger than Grade 8 and OEM fasteners. Allkits come complete with hardened parallel washers for an even load distribution and accurate torque readings.
Kit Contains:
16 x Long Bolts.
158mm Under Head Length.
10.9mm Shank Length.
M11 x 2.00mm thread into Engine.
18.7mm Bolt Head Diameter.
4 x Mid Bolts.
103.2mm Under HeadLength.
10.8mm Shank Length.
M11 x 2.00mm thread into Engine.
18.7mm Bolt Head Diameter.
10 x Short Bolts.
48.1mm UnderHead Length.
7.7mm Shank Length.
M8 x 1.25mm thread into Engine.
14.6mm Bolt Head Diameter.
20 x Large Flat Washers.
21.8mm Outside Diameter.
11mm Inside Diameter.
3mm Thickness
20 x Small Flat Washers.
15.8mm Outside Diameter.
8.25mm Inside Diameter.
3mm Thickness.