Header Inlet / Outlet Size (IN):1.5" / 2.375". Maximizing smoothest high exhaust air flow rate. TIG welded CNC machine flange. 2-Piece 4-1 Racing design(8-2-1).
FOR SMALL BLOCK CHEVY 265-400 V8 RACING EXHAUST MANIFOLD FAT FENDER WELL HEADER. Header Inlet / Outlet Size (IN). 1.5" / 2.375". 1 x Header exhaust system.Header Inlet / Outlet Size (INCH). For Chevy Small Block 1935-48 Fat Fender well Headers. We stand behind every product we sell. If you are dissatisfied for any reason, please do not be quick to leave negative/neutral feedback.