Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L
Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L is a high-flow stainless steel header system priced at $129.01. Built from T-304 stainless with mandrel bends, it boosts horsepower and torque for classic Corvette performance builds.
● In stock
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Key features
- T-304 stainless steel construction
- 4-1 long tube 8-2-1 racing design
- 1.25-inch inlet, 3.00-inch outlet
- TIG-welded for durability
- CNC-machined flange for fitment
- Includes bolts and metal gasket
- Fitment for 69-81 C3 Corvette 5.7L
Pros
- +Increases horsepower and torque
- +Durable stainless steel resists rust
- +Improves exhaust flow and engine sound
- +Includes necessary hardware
- +Precision fit for classic Corvettes
Cons
- −No installation instructions included
- −Professional installation required
- −Not emissions legal for street use
About Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L
What is Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L?
The Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L is a performance upgrade engineered to replace restrictive factory exhaust manifolds. Designed specifically for C3 Corvettes equipped with 5.7L (350ci) or 5.0L (305ci) V8 engines, this header system enhances exhaust scavenging and airflow efficiency. Constructed from durable T-304 stainless steel, it features computerized mandrel bends that maintain consistent tube diameter for optimal flow. The 4-1 long tube design merges exhaust pulses from each cylinder bank into a single collector, improving engine breathing and power output.
Key features
- Material — High-quality T-304 stainless steel resists corrosion and withstands high heat.
- Design — 4-1 long tube configuration with 8-2-1 racing specs for improved exhaust scavenging.
- Welding — Precision TIG-welded joints ensure strength and leak-free performance.
- Flange — CNC-machined mounting flange for accurate fitment and sealing.
- Dimensions — 1.25-inch inlet tubes and 3.00-inch outlet for high-volume exhaust flow.
- Hardware — Includes bolts and metal gasket for installation.
- Compatibility — Tailored for 1969–1981 Chevy Corvette models with 5.7L V8 engines.
Who is Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L for?
This header is ideal for classic Corvette enthusiasts, hot rodders, and performance DIYers restoring or upgrading C3 Corvettes. It suits those seeking measurable horsepower gains, a more aggressive exhaust note, and improved engine efficiency. Professional installation is recommended due to complexity.
How does Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L compare?
Compared to stock cast-iron manifolds, this long tube header offers superior flow, heat resistance, and weight savings. It outperforms shorty headers in mid-to-high RPM power delivery and is more durable than mild steel alternatives. While lacking emissions compliance, it’s a cost-effective upgrade for off-road and track-focused builds.
Best use cases
- →Classic Corvette performance upgrade
- →Off-road racing or track builds
- →Engine swaps or restomods
- →Exhaust system restoration
- →HP gain for 350ci V8 engines
Is Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L right for you?
This header suits DIY mechanics with advanced skills or professionals upgrading 1969–1981 Corvette V8s. Ideal for off-road or performance builds where emissions compliance isn't required. Consider mild steel headers for budget street builds or ceramic-coated options for heat management.
How it compares: Outperforms stock manifolds and shorty headers in flow and power. More durable than mild steel alternatives but not street-legal. A budget-friendly stainless option compared to coated or ceramic headers.
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What material is the Long Tube Racing Exhaust Header made from?
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It's constructed from T-304 stainless steel, known for high heat resistance, strength, and corrosion protection, ensuring long-term durability under extreme exhaust temperatures.
Does this header fit all Chevy Corvette models?
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No, it's designed specifically for 1969 to 1981 C3 Corvettes with 5.7L (350ci) or 5.0L (305ci) V8 engines. It will not fit other generations without modification.
How much horsepower can I expect to gain?
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You can expect an estimated 10 to 15 horsepower and torque gain due to improved exhaust scavenging and reduced backpressure from the long tube design.
Is installation difficult for this header?
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Yes, professional installation is highly recommended. The job requires exhaust system removal, precise alignment, and welding knowledge for optimal results.
Can I use this header on a street-driven Corvette?
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It's intended for off-road use and may not meet emissions regulations. While functional on the street, it's best suited for track or show vehicles.
How much does Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L cost?
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Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L is $129.01 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L in stock at Lab Work Auto?
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Yes, Long Tube Racing Exhaust Manifold Header Front Fit for 69-81 Chevy Corvette 5.7L is currently in stock at Lab Work Auto.
Specifications
- SKU
- F8-017357