1 3/4" Square, GM Small Block Chevy, Stock OEM 23 Deg, 3/8" Thick stainless steel, CNC Machined Header Flange.
**2 flanges are needed for a full set**
- Diameter:
- 1 3/4"
- Engine Make:
- GM/ Chevy
- Engine Family:
- Small Block Chevy
- Cylinder Head/ Engine:
- Stock OEM, 23 Degree
- Port Shape:
- Square
- Thickness:
- 3/8"
- Material:
- Stainless Steel
- **Full Set:
- 2 Required