Part# KB-MSP-138 - Mild Steel 10mm thick tabs to secure your intake manifold and headers to a Holden straight six early Grey motors 138ci.

These tabs are 10mm thick so you can grind the back of them to adjust them for a mismatch in manifold to header plate thickness so that the tabs can sit flat against the stud nut and give and even pull on both sides of the tab which will provide a better gasket seal against the head.