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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Manley Dart Big Block Pro 1 Stock Length 11/32in Stem Dia Severe Duty Intake Valves (Set of 8)Manley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million cycles, while competitors failed after just
Manley Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.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
4.3 ★★★★★
Based on 1644 reviews
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Product Reviews
★★★★★ 1
Not worth the money
Color: Blue
Ball constantly rolls on its side and shuts off. My small dogs are afraid of it.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Keeps my puppy entertained
Color: Blue
My dog loves it
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Reviewed in the United States on April 14, 2026
★★★★★ 1
Didn’t work
Color: Blue
Didn’t work junk no good didn’t work ☹️☹️☹️
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Great toy
Color: Blue+Orange
I have a little Yorkie that is constantly needing attention. This toy gives me about 15 minutes of peace. Every time he plays with it he loves it. He was scared of it at first, but then it started challenging him.
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Reviewed in the United States on May 27, 2026
★★★★★ 1
Fun for 1minute. 😞
Color: Blue+Orange
This is a fun toy that my puppy enjoyed for about 10 minutes. It pops open non stop. Also, I didn’t see anywhere in the description that “Strong chewers should not use”. It was destroyed waaaay too quickly. Charger port should be on outside w a remote for on off. It should be one solid piece so it can’t open. I would only recommend this toy for a dog no bigger than a chihuahua. I would attempt to return if it wasn’t already ruined. 😳😒
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Reviewed in the United States on December 28, 2025