9889-16-Z Head bolt kit

For the later 45-inch side-valve engines, this Colony head bolt kit is the go-to choice for 1951 to 1973 models with cast iron heads, excluding alternator-equipped models. These bolts are finished in a clean zinc plating and are designed to match the OEM style of the period. Cast iron heads have different requirements than their aluminum counterparts, and this kit is specifically engineered to provide the correct clamping force for those iron-head flatheads. Sold as a kit, it includes the necessary fasteners to complete your top-end assembly. It is a perfect solution for keeping your late-model Servi-Car or solo 45 running strong with period-correct hardware.