Race Flo 2.11in. Intake Valves for Pontiac 400 / 428 / 455 Engines by Manley Performance
Manley's Race Flo Intake Valves are constructed from NK-842 Stainless Steel for unparalleled durability. Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance. The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
Measurements
- Head Diameter: 2.11in.
- Stem Diameter: 0.3415in.
- Installed Height: Stock
- O/A Length: 5.215in.
- Tip Length: 0.25in.
- Underhead Angle / Radius: Pro Flo: 12°x3/8"
- Margin: 0.05
- Seat Width: 0.1
- Top of Head: 7° Dish
- Weight: 118g
