This 2-1 header was designed for the 1937-1962 Chevy 216/235/261 6 Cylinder engines. It is made of high quality 201 stainless steel material, intended as a replacement for the hard to find factory cast iron manifolds.
Features
Inlet: 2" x 1.65" (Rectangle) and 1.65" x 1.65" (Square)
Outlet: 2" (Diameter)
1-3/4" and 2" primary tubes
7/16" thick head flanges
Collector Diameter: 2.000"
Flange Thickness: 0.31"
2 x 2-1 (4-2) Racing design
Increase high flow air, instantly gain 10 to 15 Hp. / Tq
Fitment
For 1937-1962 Chevy 6CYL 216/235/261 (except 1954 Chevrolet Bel Air Base Sedan 4-Door)
