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Vehicle Info NeededMANLEYPART NUMBER: 660-11681-8
Extreme Duty Exhaust Valves LS1 / LS2 / LS6
$51408
Ships on 09/09/2026
Lowest Price GuaranteeExhaust Valves
- Extreme Duty Exhaust Valves
- LS1 / LS2 / LS6
- 1.575'' Diameter
- 8mm (0.3136'') Stem Diameter
- 4.923'' Overall Length (Stock)
- Stainless Steel
- 8/pkg.
- Type: Exhaust Valve XH-432 Material
- Head Diameter: 1.575'
- Stem Diameter: 8mm / 0.3136'
- Installed Height: Stock
- Overall Length: 4.923'
- Tip Length: 0.175'
- Underhead Angle / Radius: 25° x 7/16'
- Margin: 0.065'
- Seat Width: 0.115'
- Top of Head: 18° Dish
- Weight / Grams: 95
Part TypeValve
BrandMANLEY
Part CategoryPerformance Parts
Approximate Weight (G)95
Valve Tip Length (In)0.175 in.
Valve Head Style18 degree dish
Valve Stem Diameter (In)0.3136 in.
Valve Head Diameter (In)1.575 in.
QuantitySet of 8
Part FitmentSemi Universal
Swirl-PolishedYes
Overall Valve Length (In)4.923 in.
Valve MaterialXH-432 Xtreme alloy
Vendor Part Number11681-8
Package Qty1
Package TypeEA
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