4-1 Race Exhaust Header Manifold For 67-81 Chevy F-Body Small Block SBC 265-400. Getting more air into your engine and more exhaust out is the key to a performance motor.That's where exhaust headers are significant as the first revenue of an exhaust system. Exhaust performance headers manipulate the air flow with the performance-robbing exhaust manifold that came with your car. Headers provide each cylinder with its own mini exhaust pipe, which means exhaust headers prevent interference among cylinders, thus, the backpressure that occurs in common exhaust manifolds. When cylinders don't have to fight with each other to expel their exhaust, they can put more power through the wheels, Pushing the vehicle. Combining with a high-performance cold air intake and a catback exhaust system, a header system removes all restrictions of your engine, then, it is able to perform at its full potential. Header Spec: 2x 4-1 Design. 3.00" OD to 2.25" OD Weldable Collector Reducer Flanges. Pipe Spec: 1 Piece Construction on each Header. Optimized tubing for the Small Block 4.9L(302ci), 5.0L(305ci), 5.0L(307ci), 5.3(327ci), 5.7L(350ci) and 6.6L(400ci) engines. Inlet/Outlet: 1.80" x 1.50" (Oval Port)/2.85" ID, 3" OD. Wall Thickness: 3/8 Flange / 16-Gauge Piping Walls. Headers are made with high quality stainless steel , Mandrel bent tubing, CNC Machined Flanges. Gain More performance Due to More Air Flow.
Better fuel mileage with improved combustion. 1 Pair x Exhaust Header Manifold Kit (Left & Right) Hardware if any is shown in the picture above.All exhaust and suspension products are deemed for "off-road use only"- please check local laws regarding the modification of the exhaust systems by checking the vehicle code for your state. Many states are more stringent on exhaust modification laws and to pass SMOG. Please check your local laws.
All exhaust system components will alter and affect the vehicle's overall sound in pitch and volume. All to which is subjective in manner.Recommended for Racing/Off-Road Use ONLY, Will Not Pass Emissions Test. Do you carry other parts and accessories for this Vehicle? Unincorporated Territory of the United States: Address include American Samoa, Guam, Northern Mariana Islands, Puerto Rica, U. Virgin Islands, Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, Midway Atoll, Navassa Island, Wake Island, APO/FPO/DPO/AE and P. We can only process your orders though United Stated Postal Service.
Rest assured that backorders do not get lost or forgotten about. We are committed to offering our customers the best possible selection of quality merchandise while providing fully satisfied customer services.We do NOT accept return that has been used or installed. This does not mean they cannot function on such vehicles, but merely that they may not uphold to the regulations and restrictions of a highway vehicle and therefore must be designated as OFF-ROAD USE ONLY. For OBD-TI vehicles, the use of any manifolds or test pipes may remove a Catalytic Converter, in doing so this will trigger a Check Engine. Light due to Catalytic Converter failure; this sometimes can cause the vehicle to enter into a (Null Mode) which can alter the vehicles performance in a negative fashion. We is Not Responsible for any Labor Costs With installing, modifying or removal of any products regardless of the situation that has occurred and will not be held liable for such costs. We are not responsible for any Penalties or Fines Associated with the use of any of the products that we sell. For emissions related items, please check with your local jurisdiction for emission specific requirements before purchasing.
All items do not come with installation instruction unless otherwise specified. Mainly sell: Auto Part - Cold & Short Ram Air Intake, Xenon HID Light Bulb, Headlamp, Struct Bar & Tie Bar, Muffler Exhaust System, Catback, Muffler, Downpipe, Intercooler Pipe. Computer Part, Electronic Part & Home Improvement Parts. Please do assist us here, and take the short time to send through your feedback.If for any reason you are not satisfied please contact me before leaving feedback. We strive for 100% satisfied loyal customers who are happy to shop with us again & again. Powered by SixBit's eCommerce Solution. The item "4-1 Race Exhaust Header Manifold For 67-81 Chevy F-Body Small Block SBC 265-400" is in sale since Wednesday, May 12, 2021. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exhaust\Exhaust Manifolds & Headers". The seller is "urmarketoutlet" and is located in Rowland Heights, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Uruguay, Russian federation.