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Vehicle Info NeededMANLEYPART NUMBER: 660-11712-1
Severe Duty Intake Valve Small Block Chevy
$3764
Ships on 09/09/2026
Lowest Price GuaranteeIntake Valves2.080'' Valve Diameter 5/16'' Valve Stem Diameter
- Severe Duty Intake Valve
- Small Block Chevy
- 2.080'' Diameter
- 5/16'' (0.3110'') Stem Diameter
- 5.010'' Overall Length (+.100)
- Stainless Steel
- 1/pkg.
Installation Note: These 5/16' (.311') stem valves are ONLY available with Bead Loc keeper grooves. Bead Loc valve locks are REQUIRED.
- Type: Intake Valve NK-844 Material
- Head Diameter: 2.080'
- Stem Diameter: 5/16' / 0.3110'
- Installed Height: .100' Longer
- Overall Length: 5.010'
- Tip Length: 0.290'
- Underhead Angle / Radius: 12° x 3/8'
- Margin: 0.050'
- Seat Width: 0.080'
- Top of Head: 7° Dish
- Weight / Grams: 112
Part TypeValve
BrandMANLEY
Package Height2.6
Package Width2.7
Package Length7.2
Weight0.34 PG
Part CategoryPerformance Parts
Approximate Weight (G)112
Valve Tip Length (In)0.290 in.
Valve Head Style7 degree dish
Valve Stem Diameter (In)0.3110 in.
Valve Head Diameter (In)2.080 in.
QuantitySold individually
Part FitmentSemi Universal
Swirl-PolishedYes
Overall Valve Length (In)5.010 in.
Valve MaterialNK-844 stainless steel
Vendor Part Number11712-1
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
