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Vehicle Info NeededMANLEYPART NUMBER: 660-11823-1
Severe Duty Pro Flo Exhaust Valve Small Block Chevy
$3764
Ships on 09/29/2026
Lowest Price GuaranteeExhaust Valves
- Severe Duty Pro Flo Exhaust Valve
- Small Block Chevy
- 1.600'' Diameter
- 11/32'' (0.3415'') Stem Diameter
- 5.036'' Overall Length (+.100)
- Stainless Steel
- 1/pkg.
- Type: Exhaust Valve XH-428 Material
- Head Diameter: 1.600'
- Stem Diameter: 11/32' / 0.3415'
- Installed Height: +.100' Longer
- Overall Length: 5.036'
- Tip Length: 0.250'
- Underhead Angle / Radius: Pro Flo 12° x 3/8'
- Margin: 0.085'
- Seat Width: 0.080'
- Top of Head: 7° Dish
- Weight / Grams: 100
Part TypeValve
BrandMANLEY
Package Height2.4
Package Width2.7
Package Length7.5
Weight0.2 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11823-1
Package Qty1
Package TypeEA
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