For Chevy 1932-1962 I6 6 Cylinder 216 235 261 Steel Exhaust Headers Manifold NOTE: 2" outlets 1-3/4" and 2" primary tubes 7/16" thick head flanges The 2-1 headers designed for the 1932-1962 Chevy 216/235/261 6 Cylinder engines 100% Brand New Items, Never Used Or Installed Made of high quality steel material TIG welded CNC machine flange O2 sensor bung insertion; Metal gasket included Inlet: 2" x 1.65" (Rectangle) and 1.65" x 1.65" (Square) Outlet: 2" (Diameter) 2 x 2-1 (4-2) Racing design Increase high flow air, instantly gain 10 to 15 Hp. / Tq. No Installation Guides Are Included, We Highly Recommend To Seek Professional Installation Package including: Just as pictures show 1 x Header exhaust system All necessary hardware, bolts, and gaskets included Fitment: 1937-1962 CHEVY 6 CYL 216-261 3.5L/3.9L/4.3L(except 1954 Chevrolet Bel Air Base Sedan 4-Door)
