Stainless Exhaust Headers for Chevy GMC V8 396 402 427 454 502

Description: Item is 100% New, Never used or installed Outlet Size: 2.85" Primary Tube Size: 1.65" square Head Flange Thickness: 7/16" Outlet Flange Thickness: 3/8" Designed to fit the Chevrolet Big Block 396, 402, 454 V8 Engines Designed to fit many vehicles and not specific to the ones below CNC machine flanges with TIG and MIG welded construction Product does not come with installation instructions, please refer to a shop/factory manual for installation