1932 Ford Hi-Boy with SBC Engine Stainless Steel Headers. These headers are tig welded and made of high quality T304 stainless steel with CNC machined flanges. They feature 1-5/8" tubes with 3-1/2" collectors. Tubes are heavy duty 16 gauge and 3/8" thick flanges. This design allows for maximum tire and door clearance. These headers work with standard, angle plug and Vortec heads (will not work with D-Port LT-1 or ZZ4). Kit includes collectors, gaskets, and bolts needed to install.