304 SS Hardened Header Bolts Title: Z Whip Stainless Steel LS Exhaust Header Manifold Bolt Kit LS Exhaust Header Bolt Kit Parts we produce fly at 30,000 feet where failure is not an option. Chevy Exhaust anifold Bolt Size Set of 12 Hardened 304 (18-8) Stainless Steel Bolts. Chevy Exhaust anifold Bolt Kit Meets or Exceeds Industry Standard ASME / ANSI Specifications When you purchase Z Whip Parts you will always get the highest quality for your vehicle that you rightfully deserve Compatible with all LS Series Engines 1997-2014 LS1, LS2, LS3, LS6, LS7, LS9, GM Vortec 4.8L 5.3L 6.0L 6.2L with OEM Exhaust Manifolds & Aftermarket Headers. Dress up your LS engine with these zinc coated steel header bolts Z Whip Hardened Stainless Steel LS Exhaust Header Manifold Bolt Kit. We are an AS9100D and ISO 9001:2015 Certified Manufacturer that produces aerospace parts for The Boeing Aircraft Company and The US Military. Compatible with all LS Series Engines 1997-2014 LS1, LS2, LS3, LS6, LS7, LS9, GM Vortec 4., 8L 5., 3L 6., 0L 6., 2L with OEM Exhaust Manifolds & Aftermarket Headers.