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Description
Manley Big Block Chevy Stock 3/8in Stem Diameter 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:
- 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
4.7 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 3
ok as part of skin routine, but will take time to see if works
Size: 60ml
I was curious about this product because the idea of a natural product for reducing unwanted hair growth sounded appealing, but my experience was mixed at best. The oil itself feels decent on the skin and didn’t cause irritation for me, which is a plus, especially since it claims to be suitable for all skin types. That said, I did not see dramatic or fast hair-removal results, and it definitely does not work like waxing, shaving, or laser treatments. At most, it seemed like something that might help a little over time with consistent use, but the claims about reducing body hair growth felt stronger than the actual results. If you are buying this expecting a miracle product, you may be disappointed. It may be fine as part of a skincare routine, but I would keep expectations realistic.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Curious to see if it works
Size: 60ml
I’ve started a whole new shaving routine and decided to give this stuff a shot, with what I’ve used thus far I can say the smell is pleasant if you enjoy earthy and floral scents. It has a perfumey scent, but the oil itself left my skin glowing and soft. I’m anxious to continue use!
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Reviewed in the United States on February 13, 2026
★★★★★ 5
Nice product
Size: 60ml
So easyvto use. Really softens skin. Packaged well and shipped promptly.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Great for my middle-aged skin
I found that with age my typically normal skin which gave me no issues when I was a teenager became prone to weird acne that would not want to go away, redness, and overall less vitality. I was using expensive Dermalogica creams for years and loved them, until my skin decided they were not good anymore. My skin just became so much more sensitive in my forties.
This cream is so gentle on my skin and it doesn't irritate it. It's rich enough to moisturize but not too heavy to cause issues. The price is great too for the quality and volume. I'm glad I found it.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Best stuff ever
This line of face products is absolute magic. It’s made a huge difference, quickly, in skin tone evenness and texture, smoothing out the flakes from eczema patches and bumpies on my skin. I’ve had exponentially less eczema flare up since starting using this line.
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Reviewed in the United States on April 23, 2026