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Manley Chevy LS-3/L-99 Small Block Severe Duty Exhaust Valves (Set of 8)

Marsoni M251S
Sale price$163.60
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Manley Chevy LS-3/L-99 Small Block Severe Duty Exhaust 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
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Dolphin
Belleville, US
★★★★★ 5
Exelent
all the liqui moly excellent good
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Reviewed in the United States on April 4, 2026
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Jack McCord
Boise, US
★★★★★ 5
IT WORKED!
I tried 4 bottles of two other products. They did not work. One bottle of Moly (in 1/2 tank of gas) fixed the problem after driving 100 miles. GREAT PRODUCT!
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Reviewed in the United States on May 8, 2026
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RichOne
Fort Morgan, US
★★★★★ 5
Speed Fast
Love love all these products my engine runs like a Porsche I’m serious I have a 2000 Honda civic dx as well as 1996 Chevy Tahoe LT I love my vehicles especially when I pour this fabulous liquid into my vehicles five stars
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Reviewed in the United States on July 20, 2025
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1401printer
New York, US
★★★★★ 5
Great product
Great product easy to use.
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Reviewed in the United States on January 16, 2026
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ron satallante
Waukegan, US
★★★★★ 4
Better
It does quite lifters a little, not as much as I would like for my 4 cyclinder turbo engine
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Reviewed in the United States on August 2, 2024

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