Specifications:
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Model: EH28026
1-5/8” primaries
3” collector
1.625" Inlet and 3" Outlet
Boost Horsepower and torque, and Save on Gas with Headers and Exhaust System Modifications!
Boost Horsepower and torque, and Save on Gas with Headers and Exhaust System Modifications!"
Replacing a vehicle’s headers and exhaust is a way to add horsepower and torque, and it will also increase your vehicle’s volume. Want a car that sounds like an American muscle car should? This header will help your vehicle achieve that and it can add up to 8-20 horsepower.
Install an exhaust system means about a 0.5 mpg gas mileage improvement. While that might not sound like much, consider this: If gas costs $3 a gallon, and you drive this truck 15,000 miles a year, you’re saving yourself about $85 a year on gas. In five years, you’ll have saved nearly enough money to pay for a complete cat-back exhaust system.
Exhaust Header VS Manifold, which is the better choice?
The structural differences between exhaust headers and manifolds are the material and size. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold.
Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed.
Fitment & Compatibility
- 1963-1981 | Chevrolet Corvette | V8 Engines Only
- 1970 & 1976 Chevrolet Corvette (all trims/body styles/engines)
- 1965 Chevrolet Corvette Base Coupe 2-Door 5.3L
- 1977 Chevrolet Corvette Base Coupe 2-Door 5.7L
- 1979 Chevrolet Corvette Base Coupe 2-Door 5.7L
- Non-V8 engine configurations, models outside 1963-1981 year range
- Engine-swapped or heavily modified vehicles
Q1: What vehicles do these chevy 350 headers fit?
A1: These headers are specifically engineered for 1963-1981 Chevrolet Corvette models equipped with factory V8 engines. The tube routing is precision-designed for the Corvette chassis.
Q2: Which small block engine sizes are compatible with these sbc 350 headers?
A2: These high-performance headers fit a wide range of traditional Small Block Chevy (SBC) engines, including the 283, 302, 305, 307, 327, 350, and 400 cubic inch V8s.
Q3: Are these headers for chevy 350 compatible with every 1963-1981 Corvette?
A3: No, there are specific exclusions for certain sub-models. They absolutely do not fit the 1970 and 1976 Corvette (all trims), the 1965 Base Coupe 5.3L, or the 1977 and 1979 Base Coupe 5.7L.
Q4: Can I use these chevy 327 headers on my Chevy C10 truck or Camaro?
A4: No, the mandrel-bent tubing on this specific kit is routed exclusively for the tight clearances of the C2 and C3 Corvette. They are not intended for use on trucks, Camaros, or other GM platforms.
Q5: What makes these 1981 corvette headers better than the stock cast iron setups?
A5: The restrictive stock 1981 corvette exhaust manifold creates heavy backpressure. These stainless steel headers feature individual tubes for each cylinder, allowing exhaust gases to scavenge freely, which significantly boosts overall engine efficiency.
Q6: What are the primary tube and collector dimensions for these 350 sbc headers?
A6: These headers utilize 1-5/8" primary tubes that flow seamlessly into a massive 3" collector (with a 1.625" inlet), which provides the perfect balance of exhaust velocity and high-RPM flow for street and strip setups.
Q7: How much horsepower will these chevy 350 exhaust headers add to my build?
A7: By removing factory exhaust restrictions, installing these headers can add an estimated 8 to 20 horsepower, while also significantly improving mid-range torque and throttle response.
Q8: Do these chevrolet 350 headers help improve gas mileage?
A8: Yes! By increasing your engine's breathing efficiency, you can see a fuel economy improvement of roughly 0.5 mpg, saving you money at the pump while delivering better performance.
Q9: What material is used to construct these 307 headers?
A9: They are fabricated from premium, lightweight stainless steel and finished with a brilliant mirror polish. This ensures they resist rust and corrosion while looking incredible under your hood.
Q10: Are there any professional installation tips for these 327 headers?
A10: For the ultimate leak-free seal, thoroughly clean the engine block's exhaust mating surface before installation. As a pro-tip, always remember to re-torque your header bolts after the first few engine heat cycles.
Q11: Will these 283 headers give my Corvette a better exhaust tone?
A11: Absolutely. Upgrading to these long-tube headers will completely eliminate the muted factory sound, giving your classic Corvette that deep, aggressive, throaty American muscle car rumble.
Q12: Do these 350 motor headers work with angle plug cylinder heads?
A12: Yes, the 1-5/8" primary tube layout is designed to offer excellent spark plug clearance, making them highly compatible with both straight plug and most aftermarket angle plug SBC cylinder heads.