SMALL BLOCK CHEV BLACK MILD STEEL TIGHT FIT/BLOCK HUGGER HEADERS SUIT ANGLE PLUG HEADS. Brand New Cal Custom Small Block Chev Black Mild Steel Tight Fit Headers Suit Angle Plug Heads. Fits Small Block Chevy with angle/slant plug heads. Tight fit/block hugger design. The header set includes 2 headers, 2 exhaust manifold gaskets, 2 collector gaskets, 1 bolt kit. Minor modifications may be required for fitment on certain models. If your vehicle is using aftermarket components, parts from other applications or custom-altered parts, then it is the installer’s responsibility to verify fitment.