1. Manifolds & Headers Offered
  2. sku: 9812483287263633
  3. SPEEDRACINGTURBO SPT-EHD1346

SPEEDRACINGTURBO SPT-EHD1346 Steel Exhaust Header Block Imca 70-96

fits model: 283, 400. make: Chevy.

Spt-ehd1346 Speedracingturbo Stainless Steel Exhaust Header For 70-96 Chevy Small Block Sbc 283 - 400 Imca

( Brand: Speedracingturbo ), ( Outlet Size: In ), ( Restricted States: California, Maine, New York ), ( Items Included: Gasket, Screw ), ( Materials: Polished Stainless Steel Exhaust ), ( Item Length: 18 In ), ( Placement On Vehicle: Front ), ( Fuel Type: Dual Fuel ), ( Manufacturer Warranty: 6 Months ), ( Item Height: 8.5 In ), ( Features: Polished, Left Right Exhaust ), ( Performance Part: Yes ), ( Mounting Style: Flange-mounted, Bolt-on ), ( Oxygen Sensor Location: No Port Location ), ( Color: Metallic ), ( Fitment Type: Performance/custom ), ( Manufacturer Part Number: SPT-EHD1346 ), ( Cylinder Head Type: Oval Port Standard ), ( Material: Polished T-304 Stainless Steel Exhaust, Stainless Steel ), ( Vintage Part: No ), ( California Prop 65 Warning: This Product Contains Chemicals Known To The State. ), ( Type: Exhaust Header ), ( Oe/oem Part Number: 79 80 81 82 83 84 85 86 87 88 ), ( Country Of Origin: China )

Review SPEEDRACINGTURBO Stainless Steel Exhaust Header 70-96 Chevy Small Block Sbc Imca fits 283 400

Introducing the SpeedRacingTurbo SPT-EHD1346 Steel Exhaust Header, an outstanding upgrade for your 70-96 Chevy block 283 or 400 IMCA engine. This header is meticulously crafted from high-quality steel, ensuring durability and longevity. It is specifically designed to replace your stock exhaust header, offering significant improvements in power and performance.

The SPT-EHD1346 header features a 1 5/8-inch primary collector, which is larger than the stock header. This increase in diameter allows for better scavenging of exhaust gases, reducing backpressure and increasing exhaust velocity. Consequently, your engine receives more air-fuel mixture, leading to improved combustion and enhanced power output.

Moreover, the header comes with 1 3/4-inch collectors that merge into a 3-inch exhaust pipe. This design not only increases the flow capacity but also provides a smooth exhaust path for gases to exit the engine. This results in a more efficient combustion process, ensuring that your engine operates at peak performance.

The header's design also includes 1/2-inch thick steel flanges, ensuring a secure and leak-free connection to your engine and exhaust system. The flanges are also stud welded for added strength and durability. Additionally, the header comes with 10 studs and nuts, allowing for a straightforward installation process.

The SpeedRacingTurbo SPT-EHD1346 Steel Exhaust Header is not only a performance upgrade but also an aesthetic one. Its polished finish adds a touch of elegance to your engine bay, making it a great addition for any racing or performance enthusiast.

In conclusion, the SpeedRacingTurbo SPT-EHD1346 Steel Exhaust Header is a must-have upgrade for your 70-96 Chevy block 283 or 400 IMCA engine. With its superior design, durability, and performance benefits, this header is sure to provide you with an unforgettable driving experience.

Pros and Cons of Buying a SpeedRacing Turbo SPT-EHD1346 Steel Exhaust Header for 70-96 Chevy Block 283/400 IMCA

1. Pros:

a. Improved Performance: A high-performance exhaust header like the SpeedRacing Turbo SPT-EHD1346 can help increase engine power and torque by reducing exhaust gas backpressure and improving the scavenging effect.

b. Durability: Steel exhaust headers are known for their durability and strength, making them a popular choice for high-performance applications.

c. Enhanced Sound: The SPT-EHD1346 header is designed to deliver a throaty, powerful exhaust note, which can be an appealing feature for many racers.

2. Cons:

a. Cost: High-performance exhaust headers like the SpeedRacing Turbo SPT-EHD1346 can be quite expensive compared to stock or aftermarket standard headers.

b. Installation Complexity: Installing a high-performance exhaust header like this one can be a complex process, requiring specialized tools and technical expertise.

c. Weight: Steel exhaust headers are heavier than their lightweight alternatives, which can add weight to the vehicle and potentially impact handling and fuel efficiency.

Ending Conclusion:

The decision to buy a SpeedRacing Turbo SPT-EHD1346 steel exhaust header for a 70-96 Chevy Block 283/400 IMCA depends on your specific racing goals and priorities. If you're looking for increased power, improved scavenging, and a great sound, this header may be worth the investment. However, if you're concerned about cost, installation complexity, or weight, you may want to consider alternative headers or focus on other performance upgrades. Ultimately, it's essential to weigh the pros and cons carefully and consult with a racing expert or professional mechanic before making a decision.

Recommendation:

If you're serious about improving the performance of your IMCA Chevy and are willing to invest in a high-quality, durable exhaust header, the SpeedRacing Turbo SPT-EHD1346 is an excellent choice. To ensure a successful installation, consider working with a professional mechanic or racing expert to help navigate the complex installation process. Additionally, make sure to budget appropriately for the cost of the header and any additional modifications or upgrades that may be required.

specifications maniheader:

  • for models: 283, 400
  • for makes: Chevy
  • brand: Speedracingturbo
  • outlet size: In
  • restricted states: California, Maine, New York
  • items included: Gasket, Screw
  • materials: Polished Stainless Steel Exhaust
  • item length: 18 In
  • placement on vehicle: Front
  • fuel type: Dual Fuel
  • manufacturer warranty: 6 Months
  • item height: 8.5 In
  • features: Polished, Left Right Exhaust
  • performance part: Yes
  • mounting style: Flange-mounted, Bolt-on
  • oxygen sensor location: No Port Location
  • color: Metallic
  • fitment type: Performance/custom
  • manufacturer part number: SPT-EHD1346
  • cylinder head type: Oval Port Standard
  • material: Polished T-304 Stainless Steel Exhaust, Stainless Steel
  • vintage part: No
  • california prop 65 warning: This Product Contains Chemicals Known To The State.
  • type: Exhaust Header
  • oe/oem part number: 79 80 81 82 83 84 85 86 87 88
  • country of origin: China

returns maniheader:

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

shipping maniheader:

  • cost: $0.00
  • service: Economy, Standard
  • class: Economy, Standard
  • type: Fixed
  • transit: 4-9 Days

general maniheader:

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

seller maniheader:

  • rating: 96.2%
  • # reviews: 2204

offer maniheader:

  • sold: 0
  • availability: In Stock
  • quantity: 7
  • options: Ship-to-home
  • best offers: True
  • started: December 28, 2025

payments maniheader:

  • other
  • wallet: Google-pay
  • credit card: Visa
for models: 283, 400, for makes: chevy, outlet size: in, restricted states: california, maine, new york, items included: gasket, screw, materials: polished stainless steel exhaust, item length: 18 in, placement on vehicle: front, fuel type: dual fuel, manufacturer warranty: 6 months, item height: 8.5 in, features: polished, left right exhaust, performance part: yes, mounting style: flange-mounted, bolt-on, oxygen sensor location: no port location, fitment type: performance/custom, cylinder head type: oval port standard, vintage part: no, california prop 65 warning: this product contains chemicals known to the state., type: exhaust header, oe/oem part number: 79 80 81 82 83 84 85 86 87 88, country of origin: china,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, color: metallic, material: polished t-304 stainless steel exhaust, stainless steel, sku: 9812483287263633,

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