Part# VSB-EX-MT - Small block Chrysler headers MirrorTopz Bolt Kit. This bolt kit will not rust like a chrome bolt can. This Mirror Topz hex headed bolt kit is from our premium range of 316 polished stainless steel bolts polished to a mirror like finish. This custom exhaust header bolt kit will suit all small block Chrysler 273, 318, 340, 360 V8 engines. This bolt kit comes complete with 12 x bolts, washers and spring washers to enable you to bolt the after market style exhaust headers or extractors to your small block chrysler engine. This kit completes the look when you have your exhaust headers ceramic coated by companies like the Jet Hot or HPC brands.