12PCS 134-1202 Chromoly Steel Header Bolt Kit, M8x1.25 Exhaust Manifold Bolts Compatible with GM LS Series 4.8L 5.3L 5.7L 6.0L LS1 LS2 LS3 LS6 Engine

This heavy duty exhaust header bolt set matches standard 134-1202 specification, built with premium chromoly steel for long-lasting service life. With high tensile strength and anti-corrosion coating, it can withstand high temperature and tough road conditions. Standard M8x1.25 thread and 12-point head bring convenient installation and stable fixation. Widely compatible with Chevrolet Gen III LS1 LS2 LS3 LS6 4.8L 5.3L 5.7L 6.0L engines. Full set contains 12 bolts and supporting washers, ideal replacement to fix worn, rusted or broken original manifold fasteners.

• ✅ Wide Vehicle Compatibility Perfect replacement parts fit for Gen III LS series engine. Applicable models include LS1, LS2, LS3, LS6, displacement covers 4.8L, 5.3L, 5.7L and 6.0L, ideal for daily driving and engine modification use.
• ✅ Exact Standard Dimension Strictly produced following 134-1202 standard size. Adopts precise M8×1.25 thread specification and practical 12-point head design. Uniform size ensures tight fitting, easy installation and firm locking performance, no loose issue after long time use.
• ✅ Complete Practical Package Comes with 12 pieces of bolts and matched washers in one full set. Enough quantity to finish exhaust manifold assembly work directly, no extra accessories needed, save your purchasing time and cost.
• ✅ Superior Wear & Heat Resistance Constructed from sturdy chromoly steel with black oxide finishing. Features outstanding anti-rust, high temperature and abrasion resistance. Rated at 170000 PSI tensile strength, much more solid than original stock bolts, effectively avoid bending or fracture under extreme working environment.
• ✅ Reliable Replacement Performance Strictly manufactured according to original mounting standard. Stable mechanical property guarantees stable exhaust sealing, reduce air leakage risk and maintain normal engine operating condition.