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Portable Manley Chevrolet 1.600 Dia Dish 5.026 O/a Length Severe Duty Exhaust Valves (set Of 8) Pro Version [LoOle3dK]

$57.99 $185.99 -69%

Superior Manley Chevrolet Exhaust Valves Introducing the Portable Manley Chevrolet 1.600 Dia Dish 5.026 O/a Length Severe Duty Exhaust Valves (set Of 8) Pro Version [LoOle3dK], designed for maximum performance and durability. These valves are engineered to withstand the harshest co

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Superior Manley Chevrolet Exhaust Valves

Introducing the Portable Manley Chevrolet 1.600 Dia Dish 5.026 O/a Length Severe Duty Exhaust Valves (set Of 8) Pro Version [LoOle3dK], designed for maximum performance and durability. These valves are engineered to withstand the harshest conditions, ensuring your engine operates at peak efficiency. With their robust construction and advanced materials, these valves are a must-have for any high-performance gasoline engine.

Robust Construction and High-Temperature Performance

The Severe Duty valves from Manley have been put through rigorous fatigue tests, proving their exceptional strength and resilience. These valves can withstand up to 100,000,000 cycles at 40,000 psi and 1400°F, far surpassing competitors' offerings that fail after just 100,000 cycles. This means your engine will experience unparalleled reliability and longevity. Key features include:

  • Chrome Stems and Hard Tips: Enhanced durability and longevity.
  • Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency.

Perfect for High-Temperature Gasoline Engines

Designed specifically for high-temperature gasoline engines, these valves are built to last. The XH-428 material used for the exhaust valves offers nearly double the ultimate tensile strength at 1500°F compared to the competition's EV-8, while the NK-844 material for the intake valves boasts over four times the ultimate tensile strength of the best intake valve material at 1000°F. These valves are the ideal choice for anyone looking to upgrade their engine's performance and reliability. Experience the difference with Manley Chevrolet Exhaust Valves, the ultimate choice for high-performance engines.

What Our Customers Say

December 28, 2025

Absolutely no complaints!

This is a product I can trust.

- Gerald B..

December 28, 2025

Absolutely no complaints!

This is a very solid and reliable product line.

- Kooper E..

December 28, 2025

Absolutely no complaints!

The product is a very good quality item.

- Zuri S..

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