1. Manifolds & Headers Offered
  2. sku: 6803474679270713
  3. SCHOENFELD 1387LS1-3

SCHOENFELD 1387LS1-3 Race Headers Gm Body 013009000797 Stock/drag

fits model: Ls1, Street. year: 1978-88.

1387ls1-3 Schoenfeld Street Stock/drag Race Headers 1978-88 Gm G-body Ls1

( Brand: Schoenfeld ), ( Part Type: Header ), ( Manufacturer Part Number: 1387LS1-3 ), ( UPC: 013009000797 )

Review SCHOENFELD Stock/drag Race Headers Gm G body fits STREET LS1 1978-88

Introducing the Schoenfeld 1387LS1-3 Street Stock/Drag Race Headers for 1978-1988 GM G-Body LS1 engines. These high-performance headers are meticulously designed to deliver optimal power and torque gains for your muscle car.

The Schoenfeld 1387LS1-3 headers are engineered with premium 304 stainless steel, ensuring superior strength and longevity. The 1 5/8-inch primary tubes provide an ideal balance between flow and scavenging, enhancing combustion efficiency and reducing backpressure. The collectors, measuring 3 inches in diameter, allow for an expanded exhaust flow and better gas velocity, ultimately resulting in increased horsepower and torque.

One of the standout features of these headers is their versatile design. They cater to both street and race applications, making them a popular choice among enthusiasts seeking both daily drivability and track performance. The Schoenfeld 1387LS1-3 headers meet SFI 11.1 specifications, ensuring they can withstand the extreme conditions of competitive racing.

These headers come with bolt-on flanges, making the installation process straightforward and hassle-free. Additionally, they include a set of gaskets for a secure seal between the headers and engine components. The Schoenfeld 1387LS1-3 headers are also CNC-machined for precise fitment and superior quality.

By upgrading your exhaust system with the Schoenfeld 1387LS1-3 Street Stock/Drag Race Headers, you can expect improved engine response, increased power output, and a more exhilarating driving experience. These headers are a must-have for any LS1 G-Body enthusiast looking to unlock the full potential of their muscle car.

Schoenfeld 1387LS1-3 headers are aftermarket exhaust headers designed for 1978-1988 GM G-body LS1 engines. These headers are known for their high-performance design and ability to improve engine breathing, resulting in increased horsepower and torque. However, like any aftermarket part, they come with their pros and cons.

Pros:

1. Performance Gain: Schoenfeld headers are known to provide significant power gains, with some reports suggesting up to 15-20 horsepower increase. This is due to their design that reduces exhaust backpressure, allowing the engine to breathe better.

2. Durability: These headers are made from high-quality 304 stainless steel, ensuring they can withstand the rigors of high-performance use, as well as the test of time.

3. Improved Engine Sound: Aftermarket headers often provide a more pleasing exhaust note, and Schoenfeld headers are no exception. They offer a deeper, more resonant sound that many enthusiasts find appealing.

Cons:

1. Cost: Aftermarket headers can be a significant investment, with Schoenfeld headers priced higher than OEM alternatives. This may not be an issue for serious performance enthusiasts but could be a deterrent for those on a budget.

2. Installation: Installing headers requires some mechanical skills and experience, especially when it comes to welding the new exhaust system together. Some may prefer to pay a professional to handle the installation.

3. Loudness: Schoenfeld headers produce a louder exhaust note than stock headers. This could be a concern for those who prioritize a quieter ride or live in areas with strict noise regulations.

Conclusion:

Schoenfeld 1387LS1-3 headers are a high-performance upgrade for 1978-1988 GM G-body LS1 engines. They offer significant power gains, improved durability, and an appealing exhaust note. However, they come with a higher cost, a more complex installation process, and increased loudness. Ultimately, the decision to purchase these headers depends on your personal priorities, budget, and performance goals. For those seeking maximum power and a more engaging driving experience, these headers may be worth the investment. For others, the cost and installation challenges may outweigh the potential benefits.

part # 1387ls13 prices

  • $349.99-$379.95

specifications maniheader:

  • for models: Ls1, Street
  • for years: 1978-88
  • brand: Schoenfeld
  • part type: Header
  • manufacturer part number: 1387LS1-3
  • upc: 013009000797

shipping maniheader:

  • service: Standard
  • type: Fixed
  • class: Standard
  • cost: $0.00
  • transit: 4-7 Days

general maniheader:

  • condition: New
  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers

offer maniheader:

  • availability: In Stock
  • sold: 0
  • quantity: 4
  • options: Ship-to-home
  • started: July 10, 2025

seller maniheader:

  • # reviews: 595467
  • rating: 97.8%

returns maniheader:

  • policy: Returns Accepted
  • paid by: Buyer
  • time: 30 Days

payments maniheader:

  • wallet: Apple-pay
  • credit card: Diners-club
  • other
for models: ls1, street, for years: 1978-88, part type: header,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, sku: 6803474679270713,

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