Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededMANLEYPART NUMBER: 660-11686-1
Severe Duty Pro Flo Intake Valve LS3 / L99 / L92
$3764
Ships on 09/29/2026
Lowest Price GuaranteeIntake Valves
- Severe Duty Pro Flo Intake Valve
- LS3 / L99 / L92
- 2.165'' Diameter
- 8mm (0.3133'') Stem Diameter
- 4.900'' Overall Length (Stock)
- Stainless Steel
- 1/pkg.
- Type: Intake Valve NK-844 Material
- Head Diameter: 2.165'
- Stem Diameter: 8mm / 0.3133'
- Installed Height: Stock
- Overall Length: 4.900'
- Tip Length: 0.160'
- Underhead Angle / Radius: Pro Flo 12° x 3/8'
- Margin: 0.055'
- Seat Width: 0.100'
- Top of Head: 7° Dish
- Weight / Grams: 118
Part TypeValve
BrandMANLEY
Package Height2.6
Package Width2.7
Package Length7.3
Weight0.35 PG
Part CategoryPerformance Parts
Part FitmentSemi Universal
Vendor Part Number11686-1
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80521.jpg)
![Valve Spring Compressor [Stud Mount]](https://www.jegs.com/images/mini_200/500/555/555-80518.jpg)
Some parts are not legal for use in California or other states with similar laws / regulations
