SUMMIT R25909 Raw Horn Exhaust Manifolds Block

( Brand: Summit ), ( Type: Exhaust Manifold ), ( Port: 1 3/8 X 1 3/8 ), ( Manufacturer Part Number: R25909 ), ( Collector: 2 1/2 ), ( Fitment: Fits Chevy Small Block 283 305 327 350 383 400 V8 Engines ), ( Material: Cast Iron ), ( Finish: Raw Surface ), ( Fuel Type: Gasoline )

Review SUMMIT Raw Horn Exhaust Manifolds Chevy Small Block Sbc fits RAM 283 305 327 350 400

Introducing the Summit Racing Equipment R25909 Raw Ram Horn Exhaust Manifolds, a high-performance upgrade for Chevy engines with block sizes ranging from 283 to 400 cubic inches, including the popular 305 and 350 V8s. These raw, uncoated manifolds are designed for maximum flow and durability, making them an excellent choice for enthusiasts seeking improved power and torque.

Each manifold features ram horn collectors that smoothly transition exhaust gases from the engine cylinders. The raw, uncoated finish allows for easy welding and customization, providing you the freedom to create a truly unique exhaust system. These manifolds are made from premium nodular iron for unmatched strength and durability, ensuring they can withstand the rigors of high-performance use.

The Summit R25909 manifolds are designed to bolt directly onto the Chevy engine block, making installation straightforward and hassle-free. They come with new gaskets to ensure a proper seal and prevent leaks. These manifolds are also compatible with most factory exhaust systems, allowing for easy integration into your existing setup.

By upgrading to these Summit Racing Equipment R25909 Raw Ram Horn Exhaust Manifolds, you'll experience increased exhaust flow, leading to improved power and torque output. Their robust design and easy installation process make them an excellent choice for anyone looking to enhance the performance of their Chevy engine. Whether you're building a hot rod, restoring a classic, or simply seeking better power for your daily driver, these manifolds are an essential upgrade for your engine.

Summit Racing's R25909 raw ram horn exhaust manifolds are aftermarket exhaust components designed for use with Chevrolet small block engines, specifically those with displacements ranging from 283 to 400 cubic inches. These manifolds are known for their unique design and potential performance benefits, but like any aftermarket part, they come with their own set of pros and cons.

1. Unique Design: The ram horn design of these manifolds allows for better scavenging and improved exhaust flow, which can result in increased horsepower and torque.

2. Raw Finish: The raw, uncoated finish of these manifolds allows for easier customization and easier welding for those looking to build a custom exhaust system.

3. Affordability: Compared to other aftermarket exhaust manifold options, the Summit R25909 manifolds are relatively affordable, making them a popular choice among budget-conscious builders.

4. Wide Compatibility: These manifolds are compatible with a wide range of Chevrolet small block engines, making them a versatile option for those with different engine configurations.

1. Requires Customization: The raw finish and unique design of these manifolds may require more customization work to fit properly and integrate with other exhaust components.

2. Potential Leakage: The uncoated finish of these manifolds may increase the likelihood of leakage, which can lead to performance losses and potential damage to the engine.

3. Heat Management: The ram horn design of these manifolds can make heat management more challenging, which may require additional modifications to ensure proper engine temperatures.

The Summit R25909 raw ram horn exhaust manifolds offer a unique design and potential performance benefits, but they also come with their own set of challenges and requirements. Those looking to build a custom exhaust system on a budget may find these manifolds to be an attractive option, but they should be prepared for the potential customization work and potential leakage issues.

If you are looking for raw ram horn exhaust manifolds for your Chevrolet small block engine and are comfortable with the potential challenges and customization work, then the Summit R25909 manifolds may be a good option for you. However, if you prefer a more straightforward and leak-free exhaust solution, then you may want to consider other aftermarket exhaust manifold options with a coated finish. Ultimately, it's important to weigh the pros and cons carefully and make an informed decision based on your specific build goals and preferences.

part # r25909 price

• $99.99

specifications maniheader:

• for models: 283, 305, 327, 350, 400, Ram
• for makes: Chevy
• brand: Summit
• type: Exhaust Manifold
• port: 1 3/8 X 1 3/8
• manufacturer part number: R25909
• collector: 2 1/2
• fitment: Fits Chevy Small Block 283 305 327 350 383 400 V8 Engines
• material: Cast Iron
• finish: Raw Surface
• fuel type: Gasoline

shipping maniheader:

• service: USPS Ground Advantage
• carrier: USPS
• cost: $86.43
• type: Calculated
• transit: 5-9 Days
• class: Standard

offer maniheader:

• options: Ship-to-home
• best offers: True
• quantity: 1
• sold: 0
• availability: In Stock
• started: November 15, 2025

general maniheader:

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

payments maniheader:

• credit card: Discover
• money order
• wallet: Apple-pay
• other

seller maniheader:

• rating: 100.0%
• # reviews: 340

returns maniheader:

• policy: No Returns

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