RPC R9958 Hugger Headers Block 859828995803 1955-UP 265-400

( Brand: Rpc ), ( Part Type: Header Block ), ( Manufacturer Part Number: R9958 ), ( UPC: 859828995803 )

Review RPC Hugger Headers 1955-up Small Block Chevy fits STREET

Introducing the RPC R9958 Street Hugger Headers, an essential upgrade for your 1955 and up Chevrolet block engines powered by 265 to 400 cubic inch small-block Chevy V8 engines. These headers are not just an aesthetic addition but a significant performance enhancer.

The RPC Street Hugger Headers are designed with 1.625-inch primaries that taper down to a 1.875-inch collector. This design optimizes exhaust gas flow, reducing back pressure, and enhancing engine breathing. The result is improved engine performance, with increased horsepower and torque.

Made from high-quality 304 stainless steel, these headers are built to last. The material's resistance to corrosion ensures that your headers will maintain their performance and appearance, even in harsh environments. Additionally, the stainless steel construction is less prone to warping or bending, providing peace of mind and longevity.

These headers are designed with a 5/16-inch thick flange for a secure and leak-free connection to your exhaust system. The flanges are also CNC-machined for a precise fit and perfect sealing. This attention to detail ensures that your installation process is as smooth as possible and that your exhaust system remains efficient.

The RPC Street Hugger Headers are a direct-fit replacement for your stock exhaust system. This means that installation is relatively straightforward, and you will not need to make extensive modifications to your engine or exhaust system. However, it is always recommended to consult a professional mechanic for installation to ensure that everything is done correctly and safely.

In summary, the RPC R9958 Street Hugger Headers offer improved engine performance, durability, and ease of installation for your 1955 and up Chevrolet block engines. With their optimized exhaust gas flow, high-quality stainless steel construction, and precision CNC-machined flanges, these headers are an excellent investment for any performance enthusiast looking to take their small-block Chevy to the next level.

RPC R9958 Street Hugger Headers for 1955-up small block Chevy engines are aftermarket exhaust headers designed to enhance the performance of your vehicle by improving the flow of exhaust gases. Here are some pros and cons of buying these headers:

1. Improved Performance: Street Hugger Headers provide better flow and less restriction, which can lead to improved engine performance, including increased horsepower and torque.

2. Better Fuel Economy: The improved exhaust flow can also lead to better fuel economy, as the engine runs more efficiently.

3. Enhanced Sound: These headers produce a more aggressive and pleasing exhaust note, which is a desirable feature for many performance enthusiasts.

4. Durability: RPC headers are made of high-quality steel and are designed to last a long time, even under heavy use.

5. Easy Installation: The headers come with all necessary hardware for installation, and the design allows for easy access to engine components, making installation relatively straightforward.

1. Cost: Street Hugger Headers can be quite expensive, especially when compared to stock headers or aftermarket alternatives.

2. Modification Required: Installing these headers requires modification to the exhaust system, which can be a complex and time-consuming process, especially for those without experience.

3. Loud Exhaust: The headers produce a louder exhaust note than stock headers, which may not be desirable for those who prefer a quieter exhaust.

4. Fitment Issues: There have been reports of fitment issues with some engines and applications, so it is essential to ensure that the headers will fit your specific engine and application before purchasing.

RPC R9958 Street Hugger Headers offer significant performance benefits for those looking to enhance the exhaust system on their 1955-up small block Chevy engine. The improved flow, power, and fuel economy make these headers an attractive option for performance enthusiasts. However, the high cost, modification requirements, and potential fitment issues are important considerations before making a purchase.

If you are serious about improving the performance of your small block Chevy engine and are willing to invest the time and money required for installation, then RPC R9958 Street Hugger Headers are an excellent choice. However, if you are on a budget or are not comfortable with the modification process, then you may want to consider other options, such as performance exhaust systems or high-flow catalytic converters. Ultimately, the decision to purchase these headers should be based on your specific goals, budget, and level of expertise.

part # r9958 prices

• $124.99-$394.99

specifications maniheader:

• for models: Street
• for makes: Chevy
• brand: Rpc
• part type: Header Block
• manufacturer part number: R9958
• upc: 859828995803

offer maniheader:

• quantity: 2
• options: Ship-to-home
• sold: 0
• availability: In Stock
• started: June 6, 2026

general maniheader:

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

returns maniheader:

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

seller maniheader:

• rating: 99.5%
• # reviews: 633847

payments maniheader:

• credit card: Visa
• wallet: Paypal
• other

shipping maniheader:

• cost: $0.00
• class: Standard
• service: Standard
• transit: 4-6 Days
• type: Fixed

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