Manley Performance Buick V-6 Stage 1 and Production Cast Iron Heads 1.500

Stage 1 and Production Cast Iron Heads Severe Duty Valves

- XH-428 Exhaust Material
- Chrome Stems and Hard Tips
- Swirl Polished and Machined
- Intakes are "Pro Flo" for Improved Flow

Specs:

Type: Exhaust

Head Diameter: 1.500

Stem Diameter: .3415

Installed Height: Stock

O/A Length: 4.725

Tip Length: .270

Underhead Angle/Radius: 30° x 7/16"

Margin: .075

Seat Width: .090

Top of Head: 20° Dish

Weight/ Grams: 98

Set of 6