How do I confirm this exhaust part fits my vehicle?

Before ordering from Unite Auto Parts, compare the product page with your vehicle year, make, model, engine size, drivetrain, flange pattern, O2 sensor location, routing, and included hardware. Contact support if any fitment detail is unclear.

Does Unite Auto Parts offer warranty support?

Eligible Unite Auto Parts exhaust products include 5-year limited warranty support. Review the product page and store policies for the applicable warranty and return conditions.

Can I return an exhaust part if it does not fit?

Eligible unused items can be returned within the store return window. Confirm fitment before installation and review the return policy because installed exhaust components may have restrictions.

Should I check emissions legality before buying?

Yes. Exhaust components may be subject to federal, state, and local emissions rules. Buyers should confirm whether the part is legal for their vehicle, location, and intended use before purchase and installation.

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Exhaust Header Manifold For Chevy GMC BBC 396 402 427 454 502 V8 Engines

5 5-Year Warranty Support Built with durable materials and backed for long-term exhaust service.

$206.05 USD

~~$240.17 USD~~ $206.05 USD

Sale Sold out

Shipping calculated at checkout.

Features:

100% Brand new,never been used.
Made of high quality T-304 stainless steel.
TIG welded CNC machine flange.
Polished finish surface.
Direct bolt on, no modification needed.
High quality aftermarket parts.
Professional workmanship.
Strict quality control during the process.
Item exactly the same as picture shown.
All necessary hardware,bolts,and gaskets

Item Specifications:

Header Type: Shorty / Short Tube
Primary Diameter: 1-5/8 in.
Collector Diameter: 2-1/2 in.
Head Flange Thickness：3/8 in. (9.5mm)
Pipe Thickness: 16 gauge (1.5mm)
Material: 304 Stainless Steel
Finish: Polished

Fitment:

Fit for BBC 396 402 427 454 502 V8 Engines.

Package Includes
1x Exhaust Manifold Kit
As Pics Shown

Product Features

Durable Materials: Crafted from High Stainless steel for longevity.
Precision Design: Optimizes gas flow, minimizing turbulence and backpressure for better engine breathing.
Heat Management: Efficiently dissipates heat, reducing thermal stress and prolonging component life.
Emissions Compliance: Supports modern emission control systems, reducing harmful pollutants.
Corrosion Resistance: Fabricated using special processes to ensure resistance against corrosion and rust, further enhancing durability and longevity.
Fit For---- For BBC 396 402 427 454 502 V8 Engines.

✓ 5-Year Limited Warranty Warranty support for eligible Unite Auto Parts exhaust products.

✓ Heavy-Duty Materials Stainless steel, coated steel, and reinforced construction where specified.

✓ Broad Vehicle Coverage Fitment support for popular Ford, Chevy, GMC, Dodge, Ram, Jeep, Honda, BMW and more.

Match year, make, model, engine size, and drivetrain.
Check flange pattern, O2 sensor location, routing, and included hardware.
Review emissions legality for your state and intended use.

Not sure it fits? Contact us before ordering

30 in stock

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Store FAQ

What is your return policy?

We offer a 30-day return policy on all products. Items must be in original condition with all packaging and documentation.

How long does shipping take?

Standard shipping typically takes 5-7 business days. Express shipping options are available at checkout for faster delivery.

Do you offer international shipping?

Yes, we ship to most countries worldwide. International shipping costs and delivery times vary by location and will be calculated at checkout.

How can I contact customer support?

You can reach our customer support team via email at support@example.com or through the contact form on our website. We typically respond within 24 hours.

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Exhaust Header Manifold For Chevy GMC BBC 396 402 427 454 502 V8 Engines