1ST-RACING USLHD-BBC677209 Exhaust Manifolds Big Block 396/427/454/507/572 V8 65-72

( Brand: 1st-racing ), ( Mounting Style: Bolt-on ), ( Items Included: Mounting Hardware ), ( Color: Silver ), ( Manufacturer Part Number: USLHD-BBC677209 ), ( Material: Stainless Steel ), ( Placement On Vehicle: Front ), ( Fuel Type: Gasoline ), ( Type: Exhaust Manifold ), ( Manufacturer Warranty: 1 Year ), ( Features: Polished ), ( Universal Fitment: No ), ( Country Of Origin: China )

Review 1ST-RACING Exhaust Manifolds Chevy Chevrolet Bbc Big Block 396/427/454/507/572 V8 65-72 fits 396 427 454

Introducing the USLHD-BBC677209 Exhaust Manifolds, a high-performance aftermarket solution specifically designed for Chevrolet Big Block V8 engines (396, 427, 454, 507, and 572) from the years 1965 to 1972. These exhaust manifolds are manufactured by 1st Racing, a well-renowned name in the automotive aftermarket industry, known for their commitment to quality and performance.

These USLHD-BBC677209 Exhaust Manifolds are constructed using premium materials, ensuring durability and longevity. They are made from high-grade cast iron, providing superior heat dissipation and resistance against engine heat and exhaust pressure. The exhaust ports have been carefully engineered to optimize flow and minimize backpressure, resulting in improved engine performance and increased horsepower.

One of the standout features of these exhaust manifolds is their high-performance design, which includes larger primary and secondary exhaust ports. These larger ports allow for an increased exhaust flow rate, reducing the amount of exhaust gases that are held back in the engine, and provide more power to the engine.

These exhaust manifolds also come with studded flanges, which not only securely attach the manifold to the engine but also provide a strong connection for the exhaust system. Additionally, they are designed with a bolt-on installation, making the installation process quick and straightforward for most DIY enthusiasts.

The USLHD-BBC677209 Exhaust Manifolds from 1st Racing are a great addition to any performance-oriented Chevrolet Big Block V8 engine build. They offer improved performance, increased horsepower, and durability, making them an excellent investment for those looking to take their classic Chevrolet to the next level. Whether you're building a street rod, a drag racer, or a show car, these exhaust manifolds are sure to provide the power and performance you're looking for.

USLHD BBC677209 exhaust manifolds are aftermarket parts designed for Chevrolet Big Block V8 engines (396/427/454/507/572) used in vehicles from 1965 to 1972. These manifolds are designed to be used in US-specified vehicles with Left-Hand Drive (LHD). Here are some pros and cons of purchasing these exhaust manifolds:

1. Improved Performance: USLHD BBC677209 exhaust manifolds are designed to provide better exhaust flow and scavenging, resulting in improved engine performance.

2. Durability: These manifolds are made of high-quality materials that can withstand the rigors of high-performance use.

3. Fitment: These manifolds are specifically designed for Chevy Big Block engines, ensuring a perfect fit.

4. Upgrade: Installing aftermarket exhaust manifolds is a popular upgrade for performance enthusiasts, and these manifolds provide a significant power boost.

1. Cost: Aftermarket exhaust manifolds can be more expensive than OEM parts.

2. Installation: Installing aftermarket exhaust manifolds can be a complex process that requires specialized tools and knowledge.

3. Noise: These manifolds may produce more noise than OEM manifolds, which some people may find objectionable.

4. Emissions: Aftermarket exhaust manifolds may not meet emissions regulations, which could be an issue for some drivers.

USLHD BBC677209 exhaust manifolds offer significant performance benefits for Chevy Big Block engines, but they also come with some drawbacks. The decision to purchase these manifolds depends on your individual priorities and requirements. If you're looking for maximum power and performance, these manifolds are an excellent choice. However, if you're concerned about cost, installation complexity, noise, or emissions, you may want to consider other options. Ultimately, it's important to weigh the pros and cons carefully before making a purchase.

If you're serious about maximizing the performance of your Chevy Big Block engine, USLHD BBC677209 exhaust manifolds are an excellent investment. However, if you're on a budget or have concerns about installation complexity, noise, or emissions, you may want to consider OEM manifolds or other aftermarket options that offer a better balance of performance and affordability. It's always a good idea to do your research and consult with a knowledgeable mechanic or performance specialist before making a decision.

part # uslhdbbc677209 prices

• $25.43-$317.07

specifications maniheader:

• for models: 396, 427, 454
• for makes: Chevy, Chevrolet
• brand: 1st-racing
• mounting style: Bolt-on
• items included: Mounting Hardware
• color: Silver
• manufacturer part number: USLHD-BBC677209
• material: Stainless Steel
• placement on vehicle: Front
• fuel type: Gasoline
• type: Exhaust Manifold
• manufacturer warranty: 1 Year
• features: Polished
• universal fitment: No
• country of origin: China

offer maniheader:

• sold: 0
• options: Ship-to-home
• quantity: 5
• best offers: True
• started: December 12, 2025
• availability: In Stock

returns maniheader:

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

shipping maniheader:

• transit: 5-11 Days
• carrier: UPS
• cost: $0.00
• class: Standard
• type: Fixed
• service: UPS Ground

seller maniheader:

• # reviews: 1278
• rating: 96.7%

payments maniheader:

• wallet: Paypal
• other
• credit card: Discover

general maniheader:

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

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