SKU: 26872463956

Manley Big Block Ford 429-460 2.400in Diameter 5.725in Length Severe Duty Intake Valves (Set of 8)

Sale price$148.05 Regular price$164.50
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

Manley Big Block Ford 429-460 2.400in Diameter 5.725in Length Severe Duty Intake Valves (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:
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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]
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SKU: 26872463956

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Beth
Lake Worth, US
★★★★★ 5
Great product
Scent: Island Coconut, Size: 0.35 Ounce (Pack of 2)
This goes on very smooth! Not like Aquaphor or chapstick but somewhere in between!
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Reviewed in the United States on June 6, 2026
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D. Hoffman
Los Angeles, US
★★★★★ 3
Funny after taste
Scent: Island Coconut, Size: 0.35 Fl Oz (Pack of 1)
Usually love Hawaiian Tropic products but this lip balm has a weird taste. The spf is good, if you don't mind the taste.
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Reviewed in the United States on May 15, 2026
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Joleen B
Lowell, US
★★★★★ 5
Clear and soothing
Scent: Island Coconut, Size: 0.35 Fl Oz (Pack of 1)
Very smooth and smells wonderful. Good lip moisturizer. goes on clear
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Reviewed in the United States on March 10, 2026
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Bryana A. Donohue
West Palm Beach, US
★★★★★ 4
Hawaiian Tropics highly recommended for sensitive skin.
Scent: Island Coconut, Size: 0.35 Fl Oz (Pack of 1)
Love this product. This is my first summer using it. I was not disappointed. I have super sensitive skin, and can’t use most products. One thing I did notice was a few times I would get a small pimple or blackhead along the lip line. The dermatologist said it was clogged pores, but no reason not to continue using it. I have tried a few other brands and had more breakouts/ blackheads. So I keep going back to Hawaiian Tropics.
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Reviewed in the United States on August 4, 2025
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Mark B.
Massapequa, US
★★★★★ 5
A must get, it tastes so good and protects
Scent: Pineapple, Size: 0.35 Fl Oz (Pack of 1)
Love the stuff that I came back to buy a second one for all of our beach trips
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Reviewed in the United States on May 1, 2026

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