Exhaust Header for 1967-1987 Chevrolet / Pontiac / Buick / Oldsmobile 265 283 305 327 350 400 V8

SKU: FLES08256

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Sale price$135.99Limited Time Deal Regular price$204.00
Type: Header Only

Upgrade your 1967–1987 GM vehicle—including Chevrolet, Pontiac, Buick and Oldsmobile models—with FLASHARK exhaust headers. Built for Gen I Small Block Chevy 265–400 V8 engines, these stainless steel headers boost horsepower, lower exhaust backpressure, improve airflow and feature a simple bolt-on design for hassle-free installation. Not compatible with 1967 Chevrolet Camaro.

Specifications:

Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Primary Tube Size: 1 5/8"
Outlet Flange Thickness: 3/8"
Standard SBC 3-Bolt Flange Inlet / Outlet: 2.875 in

Features: 

2 X 4-1 High Performance Racing Spec. Design
Hugs the block for a closer fit and extra clearance
CNC machine flanges with TIG and MIG welded construction
Maximizing Smoothest High Exhaust Air Flow Rate
Computerized Mandrel-Bended to Maximize Air Flow Smoothness
Increase Engine Exhaust Output and Efficiency
Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.

Package including:

  • 1 x Set of Stainless Steel Headers
  • 1 x Set of Mounting Accessories
  • Just as the pictures show

What are exhaust manifolds for?

Boost Horsepower, Torque, and Performance with FLASHARK Camaro Headers!

Upgrading your headers and exhaust system is an excellent way to increase horsepower and torque while enhancing engine efficiency. FLASHARK performance headers are engineered to maximize exhaust flow, reduce backpressure, and deliver a strong horsepower gain for your GM muscle car and classic vehicle. With these headers, you can instantly add up to 10–15 horsepower, giving your ride the aggressive power and iconic sound of a true American muscle car.

These headers are precision-built for 1967–1987 Chevrolet, Pontiac, Buick and Oldsmobile models equipped with Gen I Small Block Chevy 265–400 V8 engines, offering a bolt-on perfect fit and reliable, high-output performance. Note: Not compatible with 1967 Chevrolet Camaro.

In addition to performance gains, installing a high-performance exhaust setup such as FLASHARK headers can also improve fuel economy by roughly 0.5 mpg. While this may seem modest, the savings add up over time: with gas at $3 per gallon and 15,000 miles driven annually, you can save approximately $85 per year on fuel. Over five years, these savings can nearly cover the cost of a complete cat-back exhaust system.

Actual Product Images

Exhaust Header VS Manifold, which is the better choice?

When comparing exhaust headers to traditional exhaust manifolds, the difference in design and material is clear. Exhaust headers, made from lightweight stainless steel, are longer and feature individual tubes for each cylinder, optimizing exhaust flow and reducing backpressure. In contrast, exhaust manifolds are made of thick iron, which tends to create backpressure that can hinder engine performance. By eliminating this restriction, headers allow for better airflow, enhancing horsepower and torque.

Upgrading to FLASHARK exhaust headers is a must if you're looking to improve the performance and sound of your Camaro, Chevelle, Malibu, El Camino, Nova, or Monte Carlo. These headers are designed to deliver maximum exhaust flow, reducing backpressure and providing a significant boost in horsepower—adding up to 10-15 hp.

Whether you're cruising down the road or taking your car to the track, FLASHARK headers give your vehicle the American muscle car sound and performance you’ve always wanted. Installation is straightforward with a direct bolt-on design—no modifications required. Upgrade today and enjoy improved engine efficiency, power, and a deeper exhaust note.

Fitment & Compatibility

⚠️ CORE RULE

Exclusively fits Chevrolet Gen I Small Block (SBC) 265-400 V8 engines installed in listed GM brands.

Verified Fitment
  • 1967-1987 | Chevrolet / Pontiac / Buick / Oldsmobile (models equipped with above SBC engine)
WILL NOT FIT
  • 1967 Chevrolet Camaro (NO EXCEPTIONS)
  • Non-Gen I SBC engines (LS, BBC, etc.)
  • Models not factory-equipped with Chevy 265-400 SBC
  • Engine-swapped or heavily modified vehicles

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