Manley Chevy LS-1/LS-2 Small Block 1.575 Pro Flo Severe Duty Exhaust Valves (Set of 8)

Manley Chevy LS-1/LS-2 Small Block 1.575 Pro Flo Severe Duty Exhaust Valves (Set of 8)

Marsoni

M251S

$163.60

Get it in 3 business days with 1 day shipping. Friday, May 29

Manley Chevy LS-1/LS-2 Small Block 1.575 Pro Flo 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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5'9, around 125-130 pounds, and the Small fit me just fine. Adjuster strap provides a great range of... adjustment. Good waistcoat if you are looking for something quick and cheap. With it being cheap, however, the material suffers. Due to it being folded while in shipping, there are seem lines going down the sides of the waistcoat which make it poke out and look awkward.

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Reviewed in the United States on April 9, 2022

Verified Purchase

Heather S.

Massapequa, US

★★★★★ 5

Great vest for a great price!

This vest is more slim fitting, stylish, & flattering than many vests. It fits as expected, but it is adjustable in the back, so you do have some wiggle room to tighten & loosen it if you’re unsure about the size. My son wore this vest to homecoming. He is 5’ 10” & 150 lbs, & the size small was a good fit.

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Reviewed in the United States on October 20, 2022

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Max R.

Port Orchard, US

★★★★★ 5

Great Quality Vest

Great quality vest versatile for all occasions. I personally felt it ran a bit tight (I ordered a large and felt like I was sucking in a bit the whole time) but I think an XL would have been too big. Overall impressed and happy with purchase.

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Reviewed in the United States on January 2, 2025

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RichieVee at the Piano

Cuba, US

★★★★★ 3

BUTTONS LIKE A SMALLER SIZE. GOOD QUALITY.

DESIGN IS EXCELLENT. QUALITY IS FINE. I WEAR A LARGE, BUT THIS VEST, IN A LARGE, DID NOT ALLOW ME TO BUTTON ... AS IF IT IS A MEDIUM FIT. WILL RETURN, BUT IT IS A VERY GOOD VEST OTHERWISE.

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Reviewed in the United States on September 23, 2025

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David Bays

West Palm Beach, US

★★★★★ 5

Well made and looks great.

This vest fits well and is well made. It feels tailored. I feel great and look good wearing it.

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Reviewed in the United States on December 3, 2025