ARP Header Bolt, 8 mm x 1.25 Thread, 0.984 in Long, 12 Point Head, Stainless, Polished, GM LS-Series, Set of 12. $47.99. -. S/S HEADER BOLT KIT – 12PT. GM LS for Chevrolet Trailblazer 2006-2009 LS Exhaust Manifold Bolts Car Exhaust Manifold Bolts For GM LS LT Series Engine/ Inner / Durable 12pc Black Manifold Bolts Please check your car model, and reference our product before purchasing. Due to manual measurement, the size deviation is about 1-2 cm. Not easy to rust, corrode or peel. DIRECT INSTALL: Direct replace the broken Car Exhaust Manifold Bolts. for Chevrolet Camaro 1998-2002,2010-2015 VEHICLE COMPATIBILITY for GM LS LT Series Engines 1997+ for Chevrolet Avalanche 1500 2002-2006 for Chevrolet Corvette 1997-2004,2006-2012 LS Header Bolt Set of 12 for LS1 LQ4 LQ9 LS9 4.8 5.3 6.0 6.2L LSX PRODUCT INFORMATION Material: Alloy Steel, Color: Black, Size 1: 25mm / 0., 98, Thread Size: M8x1., 25 The design is beautiful and elegant. for Pontiac GTO 2004-2006 Hihaha Car Exhaust Manifold Bolts for GM LS LT Series/Inner/Durable Alloy Steel / 12 Pcs Black in Manifold & Parts for Chevrolet Silverado 1500 1999-2015, for Chevrolet Suburban 2015