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Vehicle Info NeededMANLEYPART NUMBER: 660-11881-8
Race Master Exhaust Valves Big Block Chevy
$18869
Ships on 09/08/2026
Lowest Price GuaranteeExhaust Valves11/32'' Valve Stem Diameter
- Race Master Exhaust Valves
- Big Block Chevy
- 1.880'' Diameter (6° dish head)
- 11/32'' (0.3415'') Stem Diameter
- 5.422'' Overall Length (Stock)
- Stainless Steel
- 8/pkg.
- Type: Exhaust Valve XH-426 Material
- Head Diameter: 1.880'
- Stem Diameter: 11/32' / 0.3415'
- Installed Height: Stock
- Overall Length: 5.422'
- Tip Length: 0.250'
- Underhead Angle / Radius: 10° x 3/8'
- Margin: 0.075'
- Seat Width: 0.100'
- Top of Head: 6° Dish
- Weight / Grams: 122
Part TypeValve
BrandMANLEY
Package Height2.7
Package Width6.5
Package Length11.8
Weight2.6 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11881-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
