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Hedman 45817 LS Swap Long Tube Headers 1973-1977 GM A-Body
Upgrade your LS swap with a set of Hedman 45817 Long Tube Headers, designed specifically for 1973-1977 GM A-Body vehicles. Built from premium T304 stainless steel, these headers deliver exceptional durability, fitment, and performance for serious street and race applications.
With decades of experience building headers for GM A-Body platforms, Hedman engineered these LS swap headers to provide optimal clearance, proper fit, and maximum exhaust flow. Featuring 1-7/8" CNC mandrel-bent primary tubes and 3" high-flow collectors, these headers are built to support high-horsepower LS builds.
Key Features
- Designed for LS engine swaps in 1973-1977 GM A-Body vehicles
- 1-7/8" primary tubes for improved exhaust flow and horsepower
- 3" race collectors for maximum performance
- Constructed from T304 stainless steel for durability and corrosion resistance
- CNC mandrel-bent tubing ensures smooth, unrestricted flow
- 3/8" thick flanges resist warping and ensure a tight seal
- Hand-welded for consistent quality and fitment
- Includes gaskets and installation hardware
Specifications
| Part Number | 45817 |
| Brand | Hedman Hedders |
| Header Style | Long Tube, One-Piece |
| Material | T304 Stainless Steel |
| Finish | Natural |
| Primary Tube Size | 1-7/8" |
| Primary Tube Gauge | 18 Gauge |
| Collector Size | 3" |
| Flange Thickness | 3/8" |
| Port Shape | Round |
| Collector Attachment | Weld-On |
| Gaskets Included | Yes |
| Hardware Included | Yes |
| Quantity | Sold as a Pair |
Fitment
1973-1977 GM A-Body Vehicles (LS Swap Applications):
- Chevrolet Chevelle, El Camino, Laguna, Monte Carlo
- Buick Regal, Century
- Oldsmobile Cutlass, Cutlass Supreme
- Pontiac LeMans, Grand Prix
- GMC Sprint
Compatible with GM LS-based engines (4.8L – 7.0L), including LS1, LS2, LS3, LS6, and similar Gen III/IV platforms.
Performance Benefits
These long tube headers are designed to maximize exhaust scavenging and airflow, improving horsepower, torque, and overall engine efficiency. Ideal for high-performance street builds, drag racing, and LS swap projects where power and fitment matter.
Important Notes
- Designed specifically for LS swap applications
- Professional installation recommended
- No catalytic converters or oxygen sensor bungs included
Why Buy From Lee Motorsports?
At Lee Motorsports, we specialize in performance parts for real builds. Whether you're putting together a street car or a track-ready machine, we supply components that deliver results where it counts.