![Flange Flange](https://cdn11.bigcommerce.com/s-r6w3wplihu/images/stencil/300x300/products/1490/1736/100317_382_383_BBC_5.0_BS__71769.1622214484.1280.1280__20531.1632766788.png?c=1)
2 1/2" Round, GM Big Block Chevy, Sonny's 7x11, 5.00" Bore Space, 3/8" Thick, CNC Machined Header Flange. Available in mild steel or stainless steel.
**2 flanges are needed for a full set**
- Diameter:
- 2 1/2"
- Engine Make:
- GM/ Chevy
- Engine Family:
- Big Block Chevy
- Cylinder Head/ Engine:
- Sonny's 7x11, 5.00" Bore Space
- Port Shape:
- Round
- Thickness:
- 3/8"
- **Full Set:
- 2 Required