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Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

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Manley Performance

Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

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$401.42

$301.99

(You save $99.43

SKU:: MAN11688-8
UPC:: 807298066479
Availability:: This part is back-ordered therefore shipping time will vary.
Weight:: 2.60 LBS
Core:: N
EPA:: N/A
Proposition 65:: WARNING: Cancer and Reproductive Harm
Special Order:: Y
Core:: N
EPA:: N/A
Proposition 65:: Y
Special Order:: Y

Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

$401.42

$301.99

(You save $99.43

Description

Description

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.

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Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

Frequently Bought Together

Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

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Manley Chevy LS-1/LS-2 (LS-6) Head Small Block Severe Duty/Pro Flo Hollow Intake Valves (Set of 8) - 11682H-8

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Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

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Manley Performance

Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

Frequently Bought Together

Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Intake Valves (Set of 8) - 11688-8

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Manley Chevy LS-7 Small Block Severe Duty/Pro Flo Exhaust Valves (Set of 8) - 11679-8

Manley Chevy LS-1/L-2 Small Block 2.100 Severe Duty/Pro Flo Intake Valves (Set of 8) - 11684-8

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