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Vehicle Info NeededMANLEYPART NUMBER: 660-11554-8
Severe Duty Pro Flo Intake Valves Big Block Chevy
$31148
Ships on 09/08/2026
Lowest Price GuaranteeIntake Valves
- Severe Duty Pro Flo Intake Valves
- Big Block Chevy
- 2.065'' Diameter
- 3/8'' (0.3720'') Stem Diameter
- 5.325'' Overall Length (+.100)
- Stainless Steel
- 8/pkg.
- Type: Intake Valve NK-844 Material
- Head Diameter: 2.065'
- Stem Diameter: 3/8' / 0.3720'
- Installed Height: +.100' Longer
- Overall Length: 5.325'
- Tip Length: 0.220'
- Underhead Angle / Radius: Pro Flo 12° x 7/16'
- Margin: 0.065'
- Seat Width: 0.080'
- Top of Head: 7° Dish
- Weight / Grams: 138
Part TypeValve
BrandMANLEY
Package Height2.7
Package Width6.4
Package Length11.8
Weight2.9 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11554-8
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
