MANLEY 12345-1 Race Master Exhaust Valve 6.2L 1.590 8MM 0.3136

( Brand: Manley ), ( Manufacturer Part Number: 12345-1 ), ( Part Type: Valve Exhaust )

Review MANLEY Race Master Exhaust Valve 6.2l 1.590 Diameter 8mm fits LT1

The Manley 12345-1 Race Master Exhaust Valve is a high-performance aftermarket exhaust valve specifically designed for the 6.2L LT1 engine. This valve is a must-have for racing enthusiasts and high-performance builders seeking to optimize their engine's exhaust flow for maximum power and efficiency.

The Race Master Exhaust Valve boasts several impressive features. It is constructed from premium materials, including a 1.590-inch (40.42mm) intake valve diameter and an 8mm (0.3136-inch) stem diameter. The valve's stem is made from Manley's proprietary Vacu-Seal stem material, which ensures a leak-free seal and exceptional durability.

One of the standout features of this valve is its unique Race Master design. The valve's stem tip includes an integral seat locking ring, which ensures a positive seat-to-valve seal. This design also allows for easy valve adjustment, making it an ideal choice for high-rpm applications.

The valve's intake port is CNC-machined to ensure precise dimensions and a smooth, polished finish. This attention to detail ensures optimal airflow and efficient combustion, leading to increased power and improved engine performance.

The Manley 12345-1 Race Master Exhaust Valve is also designed to withstand the rigors of racing. It is made from heat-treated, high-carbon steel for superior strength and durability. The valve's stem is also hollow, which helps to reduce weight and improve overall engine performance.

In summary, the Manley 12345-1 Race Master Exhaust Valve is a top-quality aftermarket exhaust valve designed specifically for the 6.2L LT1 engine. Its unique Race Master design, premium materials, and attention to detail make it an ideal choice for racing enthusiasts and high-performance builders seeking to optimize their engine's exhaust flow and maximize power and efficiency.

The Manley 12345-1 Race Master Exhaust Valve is designed for high-performance applications on the 6.2L LT1 engine. Here are some potential pros and cons of purchasing this product:

1. Designed specifically for high-performance applications: The Manley Race Master Exhaust Valve is engineered to withstand the increased heat and pressure generated in high-performance engines.

2. Improved flow and durability: The valve's larger 8mm stem and 1.590-inch diameter provide improved flow and reduced restriction, resulting in better engine performance. The valve is also made of high-quality materials, such as stainless steel, for added durability.

3. Enhanced power output: By reducing restriction and improving flow, this exhaust valve can help increase power output in your LT1 engine.

4. Suitable for racing and high-performance street use: The Manley Race Master Exhaust Valve is suitable for use in racing applications and for high-performance street cars.

1. Cost: The Manley Race Master Exhaust Valve is a premium product and is more expensive than OEM exhaust valves.

2. Installation complexity: Installing aftermarket exhaust valves can be a complex process, requiring specialized tools and knowledge. It may be necessary to seek professional help to ensure proper installation.

3. Potential for increased noise: Due to its high-performance design, the Manley Race Master Exhaust Valve may result in increased exhaust noise.

The Manley 12345-1 Race Master Exhaust Valve is a high-performance aftermarket exhaust valve designed specifically for the 6.2L LT1 engine. It offers improved flow, durability, and power output, making it suitable for racing and high-performance street use. However, it comes with a higher cost and installation complexity compared to OEM exhaust valves. Ultimately, the decision to purchase this product depends on your performance goals, budget, and technical capabilities.

If you are looking for improved performance and durability in your LT1 engine and are willing to invest in a high-performance aftermarket exhaust valve, the Manley 12345-1 Race Master Exhaust Valve is a worthy consideration. However, if you are on a tight budget or prefer a simpler installation process, an OEM exhaust valve may be a more practical choice. It's important to weigh the pros and cons carefully and consider seeking professional advice before making a decision.

Details:

American Express.

part #: 123451 prices

• $170.90-$202.55

specifications voomvalve:

• for models: Lt1
• brand: Manley
• mpn: 12345-1
• part type: Valve Exhaust

seller voomvalve:

• rating: 99.2%
• # reviews: 619465
• city: , Ohio

shipping voomvalve:

• class: Standard
• type: Fixed
• cost: $15.99
• transit: 9-14 Days
• service: Standard

payments voomvalve:

• wallet: Google-pay
• other
• credit card: Mastercard

general voomvalve:

• Engines Engine Parts > Valvetrain Components > Valves
• condition: New

returns voomvalve:

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

offer voomvalve:

• availability: In Stock
• options: Ship-to-home
• started: March 7, 2026
• sold: 0
• quantity: 10

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