Blog

By Dennis Bandy Former Master Tech & Founder of Wise Auto Tools If you're tackling head bolt thread repairs on an aluminum GM LS series block, you already know there isn’t much room for error. Over the last two decades of selling thread repair kits and answering technical calls, I’ve seen just about every stripped thread situation imaginable on these engines. Whether you pulled the factory threads out during a head gasket job or you're up-sizing to aftermarket 1/2" stud conversio …