Product Name: Exhaust Header for Chevy Gmc V8 396 402 427 454 502 Model NO.: HD-025 Main Market: North America Component: Exhaust Manifold Automobile Chassis Noise: Tire Noise The Noise of Engine: Aerodynamic Noise Noise Source: Automobile Chassis Noise Discharge Standard: Euro V Body Material: Steel Type: Header Quality: High Quality Trademark: NO BRAND Transport Package: Carton Box Specification: 1SET ONE CARTON Origin: China HS Code: 8708999990 Product Description Header for Chevy Gmc Big Block V8 Shorty Headers 396 402 427 454 502HD-025 PRODUCTS DETAILSMATERIALSTAINLESS STEELPACKAGECARTON BOXQTY/CT1SETSTYLEEXHAUST HEADERMOQ30SETSProducts Include :Two Exhaust Headers with Gaskets and bolts.Item is100% New,Never used or installed.Outlet Size: 2.85"Primary Tube Size: 1.65" squareNumber of O2 Sensor Locations: 0Head Flange Thickness: 7/16"Outlet Flange Thickness: 3/8"Designed to fit the Chevrolet Big Block 396, 402, 454 V8 Engines.Hugs the block for a closer fit and extra clearanceHeaders features 8-2 light weight design.Designed to fit many vehicles and not specific to the ones below.For off-road, competition/racing use only. This product is not intended to be installed on vehicles registered for highway use.Product does not come with installation instructions, please refer to a shop/factory manual for installation.Good Quality Assurance: 100% tested before shipment.Good Service: We treat clients as friends with our best and honest service.FAQ:1.Minimum Order Quantity (MOQ): Normally the MOQ is not limited, small order can be sent by express!2.Payment Terms :TT,30% DEPOSIT,BALANCE PAY BEFORE DELIVERY.3. Trail order can be accepted.4. SHIPPING DATE:30DAYS AFTER WE GET YOUR DEPOSIT.