Part# VSB-WN-MT - Small Block Chrysler water neck 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 polished stainless steel bolts polished to a mirror like finish. This custom water neck bolt kit will suit early small block Chryslers 273, 318, 340, 360 V8 engines. This bolt kit comes complete with 2 x water neck bolts, washers and spring washers, to bolt the water neck to a typical Valiant Chrysler inlet manifold.