Intake/Exhaust kit for Chevy 194/230/250/292 6 cylinder engines. This kit replaces the intake/exhaust bolts on your engine and allows you to bolt up an Aftermarket header instead of the stock exhaust manifold. They are not only good looking, and don't rust, but they are super strong and will withstand the high temps and have a polished finish. These bolts have a tensile strength of 170,000 psi.
They have a 3/8 inch 6 point head and a .625 diameter flange for easier access in the tight spots. The kit also includes extra thick heavy duty stainless flat washers.