1. Engine Rocker & Valve Covers Items
  2. sku: 8240409531234673
  3. OFFENHAUSER 6156

OFFENHAUSER 6156 Valve Cover Breather 30

6156 Offenhauser Valve Cover Breather 30 Degree Rectangular Aluminum Polished New

( Brand: Offenhauser ), ( Manufacturer Part Number: 6156 ), ( Type: Valve Cover ), ( Color: Polished Alum ), ( Items Included: Mounting Hardware ), ( Material: Aluminum ), ( Seller: Speedway Motors ), ( Country/region Of Manufacture: United States ), ( Vintage Part: Yes ), ( Finish: Polished )

Review OFFENHAUSER Valve Cover Breather 30 Degree Rectangular Aluminum Polished New

Introducing the Offenhauser 6156 Valve Cover Breather, a crucial component designed to enhance the performance and longevity of your high-performance engine. This valve cover breather system is specifically engineered for Offenhauser 30 series engines, ensuring a perfect fit and seamless integration.

The Offenhauser 6156 Valve Cover Breather system is meticulously crafted from premium materials. It boasts a robust, yet lightweight design, made primarily from aluminum. This material choice not only contributes to the component's durability but also helps in keeping the weight down, which is essential in high-performance applications.

The breather features a large, 6156cc capacity, allowing it to effectively capture and redirect crankcase gases away from the engine. This design helps to prevent harmful gases from reentering the engine through the intake system, thereby reducing the potential for detonation and engine damage.

The Offenhauser 6156 Valve Cover Breather system is equipped with a high-flow, reusable oil filter. This filter ensures that the trapped gases are thoroughly cleaned before being expelled, maintaining the overall quality of the engine oil and extending its lifespan.

The system includes a replaceable, high-performance breather element. This element is designed to provide optimal airflow while effectively filtering out contaminants, ensuring that your engine is always breathing clean air.

The Offenhauser 6156 Valve Cover Breather is easy to install. It comes with all necessary hardware, including mounting brackets, making the installation process straightforward and hassle-free.

In conclusion, the Offenhauser 6156 Valve Cover Breather is an essential upgrade for any Offenhauser 30 series engine. Its robust design, large capacity, and effective filtration make it an indispensable tool in maintaining optimal engine performance and longevity.

Offenhauser 6156 Valve Cover Breather 30: A Detailed Analysis

The Offenhauser 6156 Valve Cover Breather 30 is a popular aftermarket solution designed to improve the performance and durability of engines by managing the crankcase pressure. In this analysis, we will discuss the potential pros and cons of investing in this product.

Pros:

1. Enhanced Engine Performance: By effectively managing crankcase pressure, the Offenhauser breather can help improve engine performance and power output, especially during high RPM operations.

2. Reduced Hood Vacuum: As the breather draws air into the crankcase, it can help reduce the vacuum in the engine compartment, which can lead to better intake system efficiency and improved throttle response.

3. Durability: The Offenhauser 6156 Valve Cover Breather 30 is known for its high-quality construction and materials, ensuring long-lasting performance and resistance to wear and tear.

4. Easy Installation: The breather kit comes with all necessary hardware and instructions, making it a relatively straightforward installation process for most enthusiasts.

Cons:

1. Cost: Compared to some other aftermarket breather options, the Offenhauser 6156 Valve Cover Breather 30 can be quite expensive, which may deter some potential buyers.

2. Required Maintenance: While not overly complex, the breather kit does require some periodic maintenance, such as cleaning or replacing the filter element, to ensure optimal performance.

3. Potential Compatibility Issues: It's important to ensure that the Offenhauser breather is compatible with your specific engine application, as some models may require different size or configuration options.

Conclusion:

The Offenhauser 6156 Valve Cover Breather 30 offers several advantages for performance enthusiasts, including improved engine performance, reduced hood vacuum, and durability. However, its relatively high cost and required maintenance may be drawbacks for some potential buyers. Ultimately, the decision to invest in this product depends on an individual's priorities, budget, and engine application.

Recommendation:

If you're an enthusiast seeking to maximize the performance and efficiency of your engine and have the budget for it, the Offenhauser 6156 Valve Cover Breather 30 is a solid investment that can help deliver noticeable improvements. However, if cost is a concern or you're unsure about the maintenance requirements, it may be worth exploring alternative, more affordable breather options. Regardless of your choice, always ensure that the breather you select is compatible with your specific engine application.

Details:

$20.00 SHIPPING ANYWHERE IN THE US. STILL IN THE PACKAGE OFFENHAUSER 30 DEGREE POLISHED ALUMINUM VALVE COVER BREATHER, ITS 5 INCHES TALL AND 5.5 WIDE.

part #: 6156 prices

  • $15.00-$237.49

specifications rockercove:

  • brand: Offenhauser
  • mpn: 6156
  • type: Valve Cover
  • color: Polished Alum
  • items included: Mounting Hardware
  • material: Aluminum
  • seller: Speedway Motors
  • country/region of manufacture: United States
  • vintage part: Yes
  • finish: Polished

shipping rockercove:

  • service: USPS Ground Advantage
  • transit: 4-10 Days
  • class: Standard
  • carrier: USPS
  • cost: $20.00
  • type: Fixed

offer rockercove:

  • quantity: 1
  • availability: In Stock
  • started: July 25, 2025
  • sold: 0
  • options: Ship-to-home

payments rockercove:

  • other
  • wallet: Apple-pay
  • credit card: Diners-club

general rockercove:

  • Engines Engine Parts > Valvetrain Components > Rocker Valve Covers
  • condition: New

returns rockercove:

  • paid by: Buyer
  • time: 14 Days
  • policy: Returns Accepted

seller rockercove:

  • city: Edgewater, Florida
  • # reviews: 2675
  • rating: 100.0%
type: valve cover, items included: mounting hardware, seller: speedway motors, country/region of manufacture: united states, vintage part: yes, finish: polished,
category: auto parts > engines engine parts > valvetrain components > rocker valve covers, color: polished alum, material: aluminum, sku: 8240409531234673,

Offenhauser 6156 Is Similar To:

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4 offers $15.00–$237.49 USD
  • Offer #1: $237.49 price + $11.35 shipping estimate = $248.84* total. Craig & Kellie Pair of original Offenhauser Heat Riser Breathers.+$11.35 shipping
  • Offer #2: $114.99 price + $13.99 shipping estimate = $128.98* total. Made from lightweight aluminum with a beautiful polished finish, The superior baffle design insures open air passages at all times, Will not leak oil even at extremely high RPM's, Base measures 1-3/4" x 4-3/4" and is a total of 5" tall, Breather includes a lower baffle plate in addition to featuring internal layer type baffle.+$13.99 shipping
  • Offer #3: $15.00 price + $0.00 shipping estimate = $15.00* total. - # 5409 vertical breather. # 5410 30 breather.FREE SHIPPING
  • Offer #4: $33.99 price + $13.99 shipping estimate = $47.98* total. Measures 2-3/4" long, 1-3/4" wide and 1-1/2" tall, Breather features a layer type baffle where one plate is over the other, Allows the air to breath, but keeps the oil baffled below, Tapped and threaded for 10-32 attachment screw, 2- 10-32 allen head cap screws included for attachment to valve cover.+$13.99 shipping

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