Small Block Chevy Race Flo Exhaust Valve 1.500" .3415" 4.911"

- XH-426 Stainless Exhaust Material
- NK-842 Stainless Intake Material
- Chrome Stems and Hard Tips
- Swirl Polished and Fully Machined
- Increased Flow with Pro Flo Underhead

Features:- Material: Stainless Steel
- Groove: Square
-Type: Exhaust
- Head Diameter: 1.500"
- Stem Diameter: .3415"
- Installed Height: Stock
- Overall Length: 4.911"
- Tip Length: .250"
- Underhead Angle/Radius: Pro Flo 10 x 3/8"
- Margin: .060"
- Seat Width: .100"
- Top of Head: 7 Dish
- Weight (Grams): 89