SKU: 29879506006

Manley Ford 351C 1.710 Inch Head Diameter / .3415 Inch Stem / Diameter Stock Height ( Set of 8)

Sale price$143.10 Regular price$159.00
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Manley Ford 351C 1.710 Inch Head Diameter / .3415 Inch Stem / Diameter Stock Height ( Set of 8)Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400? F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a

Proven Fatigue Tests: The Severe Duty? Valves have undergone rigorous fatigue tests. In normal operation, valves experience 20,000 to 25,000 lbs of applied stress. When valves bounce on the seat, this stress soars to 40,000 to 60,000 lbs. Manley exhaust valves, tested at 40,000 psi and 1400?F, impressively endured up to 100,000,000 (one hundred million) cycles. In contrast, competitors' offerings failed after just 100,000 cycles, showcasing a staggering 1000 times better fatigue life.Designed for High Temperature Gasoline Engines: Engineered for superior performance in high-temperature gasoline engines.Chrome Stems and Hard Tips: Incorporating chrome stems and hard tips for enhanced durability and longevity.Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow and combustion efficiency.XH-428 for Exhaust: No competitor worldwide offers the exceptional XH-428 as exhaust valve material. It boasts nearly double the ultimate tensile strength at 1500?F compared to the competition's EV-8.NK-844 for Intake: Our intake valve material, NK-844, is equally unmatched, displaying over four times the ultimate tensile strength of the competition's best intake valve material at 1000?F.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29879506006

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Juan
Bozeman, US
★★★★★ 5
Nice
Size: (Pack of 1)
Nice
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Reviewed in the United States on May 9, 2026
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Arun Durairaja
Charlottesville, US
★★★★★ 4
Good filter, Expensive
Size: (Pack of 1)
I like the product very much. It was upto my expectations but little expensive
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Reviewed in the United States on July 24, 2023
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Side Hug
Belleville, US
★★★★★ 5
Solid Price for Quality
Size: (Pack of 1)
Awesome filter, my engine told me it loves the fit and ease of installation. It also it very good value for money as they aren’t expensive and you are getting a high value for the money. My engine also told me it’s getting slightly better fuel efficiency as well.
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Reviewed in the United States on February 22, 2026
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Kerry M.
Omaha, US
★★★★★ 5
Made well
Size: (Pack of 1)
I just put it in but fits nice, good quality and I expect it to work very good. I watch many YouTube channels with experienced mechanics. Many of them use six products.
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Reviewed in the United States on December 23, 2025
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Greg D.
Birmingham, US
★★★★★ 5
Top quality filter
Size: (Pack of 1)
Great filter but a bit expensive.
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Reviewed in the United States on April 14, 2026

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