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Vehicle Info NeededMANLEYPART NUMBER: 660-11561-1
Severe Duty Exhaust Valve Big Block Chevy
$3764
Ships on 09/09/2026
Lowest Price GuaranteeExhaust Valves1.940'' Valve Diameter 3/8'' Valve Stem Diameter
- Severe Duty Exhaust Valve
- Big Block Chevy
- 1.940'' Diameter
- 3/8'' (0.3715'') Stem Diameter
- 5.364'' Overall Length (Stock)
- Stainless Steel
- 1/pkg.
- Type: Exhaust Valve XH-428 Material
- Head Diameter: 1.940'
- Stem Diameter: 3/8' / 0.3715'
- Installed Height: Stock
- Overall Length: 5.364'
- Tip Length: 0.220'
- Underhead Angle / Radius: 12° x 3/8'
- Margin: 0.075'
- Seat Width: 0.100'
- Top of Head: 7° Dish
- Weight / Grams: 143
Part TypeValve
BrandMANLEY
Package Height2.6
Package Width2.6
Package Length7.2
Weight0.4 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11561-1
Package Qty1
Package TypeEA
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